Home / 39,961.16-55,148.20-22,970.92

Finding the Fourth Proportional to 39,961.16, 55,148.20 and 22,970.92

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Solution

The fourth proportional to 39,961.16, 55,148.20 and 22,970.92 is: 31,700.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,961.16 : 55,148.20 = 22,970.92 : x
  2. Step 2: Convert to fraction form
    39,961.16/55,148.20 = 22,970.92/x
  3. Step 3: Cross multiply
    39,961.16x = 55,148.20 × 22,970.92
  4. Step 4: Simplify right side
    39,961.16x = 1,266,804,890.34
  5. Step 5: Solve for x
    x = 1,266,804,890.34/39,961.16
  6. Step 6: Final answer
    x = 31,700.90

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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.