Home / 20,000.16-29,960.40-12,098.48

Finding the Fourth Proportional to 20,000.16, 29,960.40 and 12,098.48

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Solution

The fourth proportional to 20,000.16, 29,960.40 and 12,098.48 is: 18,123.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,000.16 : 29,960.40 = 12,098.48 : x
  2. Step 2: Convert to fraction form
    20,000.16/29,960.40 = 12,098.48/x
  3. Step 3: Cross multiply
    20,000.16x = 29,960.40 × 12,098.48
  4. Step 4: Simplify right side
    20,000.16x = 362,475,300.19
  5. Step 5: Solve for x
    x = 362,475,300.19/20,000.16
  6. Step 6: Final answer
    x = 18,123.62

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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.