Home / 31,453,801.65-43,369,105.26-21,535,493.92

Finding the Fourth Proportional to 31,453,801.65, 43,369,105.26 and 21,535,493.92

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Solution

The fourth proportional to 31,453,801.65, 43,369,105.26 and 21,535,493.92 is: 29,693,552.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,453,801.65 : 43,369,105.26 = 21,535,493.92 : x
  2. Step 2: Convert to fraction form
    31,453,801.65/43,369,105.26 = 21,535,493.92/x
  3. Step 3: Cross multiply
    31,453,801.65x = 43,369,105.26 × 21,535,493.92
  4. Step 4: Simplify right side
    31,453,801.65x = 933,975,102,642,570
  5. Step 5: Solve for x
    x = 933,975,102,642,570/31,453,801.65
  6. Step 6: Final answer
    x = 29,693,552.25

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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.