Home / 47,008.85-70,519.86-13,731.35

Finding the Fourth Proportional to 47,008.85, 70,519.86 and 13,731.35

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Solution

The fourth proportional to 47,008.85, 70,519.86 and 13,731.35 is: 20,598.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,008.85 : 70,519.86 = 13,731.35 : x
  2. Step 2: Convert to fraction form
    47,008.85/70,519.86 = 13,731.35/x
  3. Step 3: Cross multiply
    47,008.85x = 70,519.86 × 13,731.35
  4. Step 4: Simplify right side
    47,008.85x = 968,333,055.91
  5. Step 5: Solve for x
    x = 968,333,055.91/47,008.85
  6. Step 6: Final answer
    x = 20,598.95

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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.