Home / 28,215.74-38,930.01-17,607.08

Finding the Fourth Proportional to 28,215.74, 38,930.01 and 17,607.08

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Solution

The fourth proportional to 28,215.74, 38,930.01 and 17,607.08 is: 24,292.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,215.74 : 38,930.01 = 17,607.08 : x
  2. Step 2: Convert to fraction form
    28,215.74/38,930.01 = 17,607.08/x
  3. Step 3: Cross multiply
    28,215.74x = 38,930.01 × 17,607.08
  4. Step 4: Simplify right side
    28,215.74x = 685,443,800.47
  5. Step 5: Solve for x
    x = 685,443,800.47/28,215.74
  6. Step 6: Final answer
    x = 24,292.96

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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.