Home / 40,987.31-61,487.43-14,340.74

Finding the Fourth Proportional to 40,987.31, 61,487.43 and 14,340.74

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Solution

The fourth proportional to 40,987.31, 61,487.43 and 14,340.74 is: 21,513.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,987.31 : 61,487.43 = 14,340.74 : x
  2. Step 2: Convert to fraction form
    40,987.31/61,487.43 = 14,340.74/x
  3. Step 3: Cross multiply
    40,987.31x = 61,487.43 × 14,340.74
  4. Step 4: Simplify right side
    40,987.31x = 881,774,939.46
  5. Step 5: Solve for x
    x = 881,774,939.46/40,987.31
  6. Step 6: Final answer
    x = 21,513.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.