Home / 47,514.40-71,271.90-12,453.75

Finding the Fourth Proportional to 47,514.40, 71,271.90 and 12,453.75

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Solution

The fourth proportional to 47,514.40, 71,271.90 and 12,453.75 is: 18,680.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,514.40 : 71,271.90 = 12,453.75 : x
  2. Step 2: Convert to fraction form
    47,514.40/71,271.90 = 12,453.75/x
  3. Step 3: Cross multiply
    47,514.40x = 71,271.90 × 12,453.75
  4. Step 4: Simplify right side
    47,514.40x = 887,602,424.63
  5. Step 5: Solve for x
    x = 887,602,424.63/47,514.40
  6. Step 6: Final answer
    x = 18,680.70

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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.