Home / 39,725.92-59,461.02-20,979.16

Finding the Fourth Proportional to 39,725.92, 59,461.02 and 20,979.16

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Solution

The fourth proportional to 39,725.92, 59,461.02 and 20,979.16 is: 31,401.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,725.92 : 59,461.02 = 20,979.16 : x
  2. Step 2: Convert to fraction form
    39,725.92/59,461.02 = 20,979.16/x
  3. Step 3: Cross multiply
    39,725.92x = 59,461.02 × 20,979.16
  4. Step 4: Simplify right side
    39,725.92x = 1,247,442,252.34
  5. Step 5: Solve for x
    x = 1,247,442,252.34/39,725.92
  6. Step 6: Final answer
    x = 31,401.22

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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.