Home / 20,967.66-28,944.45-14,988.96

Finding the Fourth Proportional to 20,967.66, 28,944.45 and 14,988.96

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Solution

The fourth proportional to 20,967.66, 28,944.45 and 14,988.96 is: 20,691.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,967.66 : 28,944.45 = 14,988.96 : x
  2. Step 2: Convert to fraction form
    20,967.66/28,944.45 = 14,988.96/x
  3. Step 3: Cross multiply
    20,967.66x = 28,944.45 × 14,988.96
  4. Step 4: Simplify right side
    20,967.66x = 433,847,203.27
  5. Step 5: Solve for x
    x = 433,847,203.27/20,967.66
  6. Step 6: Final answer
    x = 20,691.26

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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.