Home / 20,275.29-30,425.73-20,108.16

Finding the Fourth Proportional to 20,275.29, 30,425.73 and 20,108.16

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Solution

The fourth proportional to 20,275.29, 30,425.73 and 20,108.16 is: 30,174.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,275.29 : 30,425.73 = 20,108.16 : x
  2. Step 2: Convert to fraction form
    20,275.29/30,425.73 = 20,108.16/x
  3. Step 3: Cross multiply
    20,275.29x = 30,425.73 × 20,108.16
  4. Step 4: Simplify right side
    20,275.29x = 611,805,446.96
  5. Step 5: Solve for x
    x = 611,805,446.96/20,275.29
  6. Step 6: Final answer
    x = 30,174.93

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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.