Home / 47,155.04-65,046.84-28,281.20

Finding the Fourth Proportional to 47,155.04, 65,046.84 and 28,281.20

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Solution

The fourth proportional to 47,155.04, 65,046.84 and 28,281.20 is: 39,011.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,155.04 : 65,046.84 = 28,281.20 : x
  2. Step 2: Convert to fraction form
    47,155.04/65,046.84 = 28,281.20/x
  3. Step 3: Cross multiply
    47,155.04x = 65,046.84 × 28,281.20
  4. Step 4: Simplify right side
    47,155.04x = 1,839,602,691.41
  5. Step 5: Solve for x
    x = 1,839,602,691.41/47,155.04
  6. Step 6: Final answer
    x = 39,011.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.