Home / 47,947.04-71,920.50-12,886.70

Finding the Fourth Proportional to 47,947.04, 71,920.50 and 12,886.70

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Solution

The fourth proportional to 47,947.04, 71,920.50 and 12,886.70 is: 19,330.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,947.04 : 71,920.50 = 12,886.70 : x
  2. Step 2: Convert to fraction form
    47,947.04/71,920.50 = 12,886.70/x
  3. Step 3: Cross multiply
    47,947.04x = 71,920.50 × 12,886.70
  4. Step 4: Simplify right side
    47,947.04x = 926,817,907.35
  5. Step 5: Solve for x
    x = 926,817,907.35/47,947.04
  6. Step 6: Final answer
    x = 19,330.03

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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.