Home / 20,988.46-31,482.66-14,394.66

Finding the Fourth Proportional to 20,988.46, 31,482.66 and 14,394.66

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Solution

The fourth proportional to 20,988.46, 31,482.66 and 14,394.66 is: 21,591.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,988.46 : 31,482.66 = 14,394.66 : x
  2. Step 2: Convert to fraction form
    20,988.46/31,482.66 = 14,394.66/x
  3. Step 3: Cross multiply
    20,988.46x = 31,482.66 × 14,394.66
  4. Step 4: Simplify right side
    20,988.46x = 453,182,186.60
  5. Step 5: Solve for x
    x = 453,182,186.60/20,988.46
  6. Step 6: Final answer
    x = 21,591.97

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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.