Home / 20,456.42-30,713.36-10,468.31

Finding the Fourth Proportional to 20,456.42, 30,713.36 and 10,468.31

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Solution

The fourth proportional to 20,456.42, 30,713.36 and 10,468.31 is: 15,717.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,456.42 : 30,713.36 = 10,468.31 : x
  2. Step 2: Convert to fraction form
    20,456.42/30,713.36 = 10,468.31/x
  3. Step 3: Cross multiply
    20,456.42x = 30,713.36 × 10,468.31
  4. Step 4: Simplify right side
    20,456.42x = 321,516,767.71
  5. Step 5: Solve for x
    x = 321,516,767.71/20,456.42
  6. Step 6: Final answer
    x = 15,717.16

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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.