Home / 47,279.32-70,930.07-18,818.00

Finding the Fourth Proportional to 47,279.32, 70,930.07 and 18,818.00

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Solution

The fourth proportional to 47,279.32, 70,930.07 and 18,818.00 is: 28,231.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,279.32 : 70,930.07 = 18,818.00 : x
  2. Step 2: Convert to fraction form
    47,279.32/70,930.07 = 18,818.00/x
  3. Step 3: Cross multiply
    47,279.32x = 70,930.07 × 18,818.00
  4. Step 4: Simplify right side
    47,279.32x = 1,334,762,042.11
  5. Step 5: Solve for x
    x = 1,334,762,042.11/47,279.32
  6. Step 6: Final answer
    x = 28,231.41

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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.