Home / 20,685.52-31,000.33-14,829.22

Finding the Fourth Proportional to 20,685.52, 31,000.33 and 14,829.22

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Solution

The fourth proportional to 20,685.52, 31,000.33 and 14,829.22 is: 22,223.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,685.52 : 31,000.33 = 14,829.22 : x
  2. Step 2: Convert to fraction form
    20,685.52/31,000.33 = 14,829.22/x
  3. Step 3: Cross multiply
    20,685.52x = 31,000.33 × 14,829.22
  4. Step 4: Simplify right side
    20,685.52x = 459,710,713.64
  5. Step 5: Solve for x
    x = 459,710,713.64/20,685.52
  6. Step 6: Final answer
    x = 22,223.79

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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.