Home / 47,869.86-71,799.32-12,812.25

Finding the Fourth Proportional to 47,869.86, 71,799.32 and 12,812.25

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Solution

The fourth proportional to 47,869.86, 71,799.32 and 12,812.25 is: 19,216.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,869.86 : 71,799.32 = 12,812.25 : x
  2. Step 2: Convert to fraction form
    47,869.86/71,799.32 = 12,812.25/x
  3. Step 3: Cross multiply
    47,869.86x = 71,799.32 × 12,812.25
  4. Step 4: Simplify right side
    47,869.86x = 919,911,049.20
  5. Step 5: Solve for x
    x = 919,911,049.20/47,869.86
  6. Step 6: Final answer
    x = 19,216.91

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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.