Home / 51,379.13-70,901.08-28,718.17

Finding the Fourth Proportional to 51,379.13, 70,901.08 and 28,718.17

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Solution

The fourth proportional to 51,379.13, 70,901.08 and 28,718.17 is: 39,629.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,379.13 : 70,901.08 = 28,718.17 : x
  2. Step 2: Convert to fraction form
    51,379.13/70,901.08 = 28,718.17/x
  3. Step 3: Cross multiply
    51,379.13x = 70,901.08 × 28,718.17
  4. Step 4: Simplify right side
    51,379.13x = 2,036,149,019.58
  5. Step 5: Solve for x
    x = 2,036,149,019.58/51,379.13
  6. Step 6: Final answer
    x = 39,629.88

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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.