Home / 47,615.90-71,423.85-12,559.10

Finding the Fourth Proportional to 47,615.90, 71,423.85 and 12,559.10

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Solution

The fourth proportional to 47,615.90, 71,423.85 and 12,559.10 is: 18,838.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,615.90 : 71,423.85 = 12,559.10 : x
  2. Step 2: Convert to fraction form
    47,615.90/71,423.85 = 12,559.10/x
  3. Step 3: Cross multiply
    47,615.90x = 71,423.85 × 12,559.10
  4. Step 4: Simplify right side
    47,615.90x = 897,019,274.54
  5. Step 5: Solve for x
    x = 897,019,274.54/47,615.90
  6. Step 6: Final answer
    x = 18,838.65

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1.5x scale

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.