Home / 38,443.81-57,665.36-12,148.55

Finding the Fourth Proportional to 38,443.81, 57,665.36 and 12,148.55

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Solution

The fourth proportional to 38,443.81, 57,665.36 and 12,148.55 is: 18,222.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,443.81 : 57,665.36 = 12,148.55 : x
  2. Step 2: Convert to fraction form
    38,443.81/57,665.36 = 12,148.55/x
  3. Step 3: Cross multiply
    38,443.81x = 57,665.36 × 12,148.55
  4. Step 4: Simplify right side
    38,443.81x = 700,550,160.16
  5. Step 5: Solve for x
    x = 700,550,160.16/38,443.81
  6. Step 6: Final answer
    x = 18,222.70

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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.