Home / 29,421.12-40,600.32-15,991.92

Finding the Fourth Proportional to 29,421.12, 40,600.32 and 15,991.92

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Solution

The fourth proportional to 29,421.12, 40,600.32 and 15,991.92 is: 22,068.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,421.12 : 40,600.32 = 15,991.92 : x
  2. Step 2: Convert to fraction form
    29,421.12/40,600.32 = 15,991.92/x
  3. Step 3: Cross multiply
    29,421.12x = 40,600.32 × 15,991.92
  4. Step 4: Simplify right side
    29,421.12x = 649,277,069.41
  5. Step 5: Solve for x
    x = 649,277,069.41/29,421.12
  6. Step 6: Final answer
    x = 22,068.40

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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.