Home / 31,587.03-47,339.55-12,845.25

Finding the Fourth Proportional to 31,587.03, 47,339.55 and 12,845.25

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Solution

The fourth proportional to 31,587.03, 47,339.55 and 12,845.25 is: 19,251.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,587.03 : 47,339.55 = 12,845.25 : x
  2. Step 2: Convert to fraction form
    31,587.03/47,339.55 = 12,845.25/x
  3. Step 3: Cross multiply
    31,587.03x = 47,339.55 × 12,845.25
  4. Step 4: Simplify right side
    31,587.03x = 608,088,354.64
  5. Step 5: Solve for x
    x = 608,088,354.64/31,587.03
  6. Step 6: Final answer
    x = 19,251.20

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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.