Home / 28,182.27-38,828.91-18,605.10

Finding the Fourth Proportional to 28,182.27, 38,828.91 and 18,605.10

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Solution

The fourth proportional to 28,182.27, 38,828.91 and 18,605.10 is: 25,633.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,182.27 : 38,828.91 = 18,605.10 : x
  2. Step 2: Convert to fraction form
    28,182.27/38,828.91 = 18,605.10/x
  3. Step 3: Cross multiply
    28,182.27x = 38,828.91 × 18,605.10
  4. Step 4: Simplify right side
    28,182.27x = 722,415,753.44
  5. Step 5: Solve for x
    x = 722,415,753.44/28,182.27
  6. Step 6: Final answer
    x = 25,633.70

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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.