Home / 38,664.36-57,990.78-12,366.36

Finding the Fourth Proportional to 38,664.36, 57,990.78 and 12,366.36

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Solution

The fourth proportional to 38,664.36, 57,990.78 and 12,366.36 is: 18,547.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,664.36 : 57,990.78 = 12,366.36 : x
  2. Step 2: Convert to fraction form
    38,664.36/57,990.78 = 12,366.36/x
  3. Step 3: Cross multiply
    38,664.36x = 57,990.78 × 12,366.36
  4. Step 4: Simplify right side
    38,664.36x = 717,134,862.16
  5. Step 5: Solve for x
    x = 717,134,862.16/38,664.36
  6. Step 6: Final answer
    x = 18,547.70

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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.