Home / 31,021.53-42,802.48-18,098.79

Finding the Fourth Proportional to 31,021.53, 42,802.48 and 18,098.79

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Solution

The fourth proportional to 31,021.53, 42,802.48 and 18,098.79 is: 24,972.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,021.53 : 42,802.48 = 18,098.79 : x
  2. Step 2: Convert to fraction form
    31,021.53/42,802.48 = 18,098.79/x
  3. Step 3: Cross multiply
    31,021.53x = 42,802.48 × 18,098.79
  4. Step 4: Simplify right side
    31,021.53x = 774,673,098.07
  5. Step 5: Solve for x
    x = 774,673,098.07/31,021.53
  6. Step 6: Final answer
    x = 24,972.11

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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.