Home / 20,341.52-28,084.34-13,966.05

Finding the Fourth Proportional to 20,341.52, 28,084.34 and 13,966.05

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Solution

The fourth proportional to 20,341.52, 28,084.34 and 13,966.05 is: 19,282.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,341.52 : 28,084.34 = 13,966.05 : x
  2. Step 2: Convert to fraction form
    20,341.52/28,084.34 = 13,966.05/x
  3. Step 3: Cross multiply
    20,341.52x = 28,084.34 × 13,966.05
  4. Step 4: Simplify right side
    20,341.52x = 392,227,331.57
  5. Step 5: Solve for x
    x = 392,227,331.57/20,341.52
  6. Step 6: Final answer
    x = 19,282.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.