Home / 47,813.85-71,718.93-12,753.20

Finding the Fourth Proportional to 47,813.85, 71,718.93 and 12,753.20

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Solution

The fourth proportional to 47,813.85, 71,718.93 and 12,753.20 is: 19,129.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,813.85 : 71,718.93 = 12,753.20 : x
  2. Step 2: Convert to fraction form
    47,813.85/71,718.93 = 12,753.20/x
  3. Step 3: Cross multiply
    47,813.85x = 71,718.93 × 12,753.20
  4. Step 4: Simplify right side
    47,813.85x = 914,645,499.48
  5. Step 5: Solve for x
    x = 914,645,499.48/47,813.85
  6. Step 6: Final answer
    x = 19,129.30

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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.