Home / 20,617.61-28,459.14-14,666.54

Finding the Fourth Proportional to 20,617.61, 28,459.14 and 14,666.54

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Solution

The fourth proportional to 20,617.61, 28,459.14 and 14,666.54 is: 20,244.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,617.61 : 28,459.14 = 14,666.54 : x
  2. Step 2: Convert to fraction form
    20,617.61/28,459.14 = 14,666.54/x
  3. Step 3: Cross multiply
    20,617.61x = 28,459.14 × 14,666.54
  4. Step 4: Simplify right side
    20,617.61x = 417,397,115.18
  5. Step 5: Solve for x
    x = 417,397,115.18/20,617.61
  6. Step 6: Final answer
    x = 20,244.69

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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.