Home / 29,420.57-40,600.63-15,991.83

Finding the Fourth Proportional to 29,420.57, 40,600.63 and 15,991.83

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Solution

The fourth proportional to 29,420.57, 40,600.63 and 15,991.83 is: 22,068.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,420.57 : 40,600.63 = 15,991.83 : x
  2. Step 2: Convert to fraction form
    29,420.57/40,600.63 = 15,991.83/x
  3. Step 3: Cross multiply
    29,420.57x = 40,600.63 × 15,991.83
  4. Step 4: Simplify right side
    29,420.57x = 649,278,302.89
  5. Step 5: Solve for x
    x = 649,278,302.89/29,420.57
  6. Step 6: Final answer
    x = 22,068.86

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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.