Home / 47,312.64-70,964.10-15,724.80

Finding the Fourth Proportional to 47,312.64, 70,964.10 and 15,724.80

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Solution

The fourth proportional to 47,312.64, 70,964.10 and 15,724.80 is: 23,585.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,312.64 : 70,964.10 = 15,724.80 : x
  2. Step 2: Convert to fraction form
    47,312.64/70,964.10 = 15,724.80/x
  3. Step 3: Cross multiply
    47,312.64x = 70,964.10 × 15,724.80
  4. Step 4: Simplify right side
    47,312.64x = 1,115,896,279.68
  5. Step 5: Solve for x
    x = 1,115,896,279.68/47,312.64
  6. Step 6: Final answer
    x = 23,585.58

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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.