Home / 38,689.67-58,087.97-19,985.15

Finding the Fourth Proportional to 38,689.67, 58,087.97 and 19,985.15

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Solution

The fourth proportional to 38,689.67, 58,087.97 and 19,985.15 is: 30,005.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,689.67 : 58,087.97 = 19,985.15 : x
  2. Step 2: Convert to fraction form
    38,689.67/58,087.97 = 19,985.15/x
  3. Step 3: Cross multiply
    38,689.67x = 58,087.97 × 19,985.15
  4. Step 4: Simplify right side
    38,689.67x = 1,160,896,403.28
  5. Step 5: Solve for x
    x = 1,160,896,403.28/38,689.67
  6. Step 6: Final answer
    x = 30,005.34

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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.