Home / 47,143.32-70,727.12-13,864.47

Finding the Fourth Proportional to 47,143.32, 70,727.12 and 13,864.47

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Solution

The fourth proportional to 47,143.32, 70,727.12 and 13,864.47 is: 20,800.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,143.32 : 70,727.12 = 13,864.47 : x
  2. Step 2: Convert to fraction form
    47,143.32/70,727.12 = 13,864.47/x
  3. Step 3: Cross multiply
    47,143.32x = 70,727.12 × 13,864.47
  4. Step 4: Simplify right side
    47,143.32x = 980,594,033.43
  5. Step 5: Solve for x
    x = 980,594,033.43/47,143.32
  6. Step 6: Final answer
    x = 20,800.28

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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.