Home / 27,930-38,543.67-15,355.02

Finding the Fourth Proportional to 27,930, 38,543.67 and 15,355.02

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Solution

The fourth proportional to 27,930, 38,543.67 and 15,355.02 is: 21,190.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,930 : 38,543.67 = 15,355.02 : x
  2. Step 2: Convert to fraction form
    27,930/38,543.67 = 15,355.02/x
  3. Step 3: Cross multiply
    27,930x = 38,543.67 × 15,355.02
  4. Step 4: Simplify right side
    27,930x = 591,838,823.72
  5. Step 5: Solve for x
    x = 591,838,823.72/27,930
  6. Step 6: Final answer
    x = 21,190.08

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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.