Home / 38,715.18-58,083.81-18,999.66

Finding the Fourth Proportional to 38,715.18, 58,083.81 and 18,999.66

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Solution

The fourth proportional to 38,715.18, 58,083.81 and 18,999.66 is: 28,504.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,715.18 : 58,083.81 = 18,999.66 : x
  2. Step 2: Convert to fraction form
    38,715.18/58,083.81 = 18,999.66/x
  3. Step 3: Cross multiply
    38,715.18x = 58,083.81 × 18,999.66
  4. Step 4: Simplify right side
    38,715.18x = 1,103,572,641.50
  5. Step 5: Solve for x
    x = 1,103,572,641.50/38,715.18
  6. Step 6: Final answer
    x = 28,504.91

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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.