Home / 40,729.50-61,038.77-20,966.31

Finding the Fourth Proportional to 40,729.50, 61,038.77 and 20,966.31

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Solution

The fourth proportional to 40,729.50, 61,038.77 and 20,966.31 is: 31,420.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,729.50 : 61,038.77 = 20,966.31 : x
  2. Step 2: Convert to fraction form
    40,729.50/61,038.77 = 20,966.31/x
  3. Step 3: Cross multiply
    40,729.50x = 61,038.77 × 20,966.31
  4. Step 4: Simplify right side
    40,729.50x = 1,279,757,669.01
  5. Step 5: Solve for x
    x = 1,279,757,669.01/40,729.50
  6. Step 6: Final answer
    x = 31,420.90

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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.