Home / 31,453,802.65-43,369,106.64-21,535,494.92

Finding the Fourth Proportional to 31,453,802.65, 43,369,106.64 and 21,535,494.92

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Solution

The fourth proportional to 31,453,802.65, 43,369,106.64 and 21,535,494.92 is: 29,693,553.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,453,802.65 : 43,369,106.64 = 21,535,494.92 : x
  2. Step 2: Convert to fraction form
    31,453,802.65/43,369,106.64 = 21,535,494.92/x
  3. Step 3: Cross multiply
    31,453,802.65x = 43,369,106.64 × 21,535,494.92
  4. Step 4: Simplify right side
    31,453,802.65x = 933,975,175,730,658.38
  5. Step 5: Solve for x
    x = 933,975,175,730,658.38/31,453,802.65
  6. Step 6: Final answer
    x = 29,693,553.63

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.