Home / 38,665.18-57,988.32-12,364.48

Finding the Fourth Proportional to 38,665.18, 57,988.32 and 12,364.48

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Solution

The fourth proportional to 38,665.18, 57,988.32 and 12,364.48 is: 18,543.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,665.18 : 57,988.32 = 12,364.48 : x
  2. Step 2: Convert to fraction form
    38,665.18/57,988.32 = 12,364.48/x
  3. Step 3: Cross multiply
    38,665.18x = 57,988.32 × 12,364.48
  4. Step 4: Simplify right side
    38,665.18x = 716,995,422.87
  5. Step 5: Solve for x
    x = 716,995,422.87/38,665.18
  6. Step 6: Final answer
    x = 18,543.70

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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.