Home / 27,129.80-40,631.52-26,382.40

Finding the Fourth Proportional to 27,129.80, 40,631.52 and 26,382.40

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Solution

The fourth proportional to 27,129.80, 40,631.52 and 26,382.40 is: 39,512.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,129.80 : 40,631.52 = 26,382.40 : x
  2. Step 2: Convert to fraction form
    27,129.80/40,631.52 = 26,382.40/x
  3. Step 3: Cross multiply
    27,129.80x = 40,631.52 × 26,382.40
  4. Step 4: Simplify right side
    27,129.80x = 1,071,957,013.25
  5. Step 5: Solve for x
    x = 1,071,957,013.25/27,129.80
  6. Step 6: Final answer
    x = 39,512.16

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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.