Home / 38,718.72-58,064.12-13,411.38

Finding the Fourth Proportional to 38,718.72, 58,064.12 and 13,411.38

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Solution

The fourth proportional to 38,718.72, 58,064.12 and 13,411.38 is: 20,112.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,718.72 : 58,064.12 = 13,411.38 : x
  2. Step 2: Convert to fraction form
    38,718.72/58,064.12 = 13,411.38/x
  3. Step 3: Cross multiply
    38,718.72x = 58,064.12 × 13,411.38
  4. Step 4: Simplify right side
    38,718.72x = 778,719,977.69
  5. Step 5: Solve for x
    x = 778,719,977.69/38,718.72
  6. Step 6: Final answer
    x = 20,112.23

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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.