Home / 43,251.20-64,864.65-13,678.10

Finding the Fourth Proportional to 43,251.20, 64,864.65 and 13,678.10

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Solution

The fourth proportional to 43,251.20, 64,864.65 and 13,678.10 is: 20,513.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,251.20 : 64,864.65 = 13,678.10 : x
  2. Step 2: Convert to fraction form
    43,251.20/64,864.65 = 13,678.10/x
  3. Step 3: Cross multiply
    43,251.20x = 64,864.65 × 13,678.10
  4. Step 4: Simplify right side
    43,251.20x = 887,225,169.17
  5. Step 5: Solve for x
    x = 887,225,169.17/43,251.20
  6. Step 6: Final answer
    x = 20,513.31

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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.