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Finding the Fourth Proportional to 29,365.87, 40,525 and 15,937.12

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Solution

The fourth proportional to 29,365.87, 40,525 and 15,937.12 is: 21,993.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,365.87 : 40,525 = 15,937.12 : x
  2. Step 2: Convert to fraction form
    29,365.87/40,525 = 15,937.12/x
  3. Step 3: Cross multiply
    29,365.87x = 40,525 × 15,937.12
  4. Step 4: Simplify right side
    29,365.87x = 645,851,788
  5. Step 5: Solve for x
    x = 645,851,788/29,365.87
  6. Step 6: Final answer
    x = 21,993.28

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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.