Home / 47,948.76-71,921.52-12,886.56

Finding the Fourth Proportional to 47,948.76, 71,921.52 and 12,886.56

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Solution

The fourth proportional to 47,948.76, 71,921.52 and 12,886.56 is: 19,329.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,948.76 : 71,921.52 = 12,886.56 : x
  2. Step 2: Convert to fraction form
    47,948.76/71,921.52 = 12,886.56/x
  3. Step 3: Cross multiply
    47,948.76x = 71,921.52 × 12,886.56
  4. Step 4: Simplify right side
    47,948.76x = 926,820,982.77
  5. Step 5: Solve for x
    x = 926,820,982.77/47,948.76
  6. Step 6: Final answer
    x = 19,329.40

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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.