Home / 38,400.15-57,603.15-13,091.81

Finding the Fourth Proportional to 38,400.15, 57,603.15 and 13,091.81

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Solution

The fourth proportional to 38,400.15, 57,603.15 and 13,091.81 is: 19,638.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,400.15 : 57,603.15 = 13,091.81 : x
  2. Step 2: Convert to fraction form
    38,400.15/57,603.15 = 13,091.81/x
  3. Step 3: Cross multiply
    38,400.15x = 57,603.15 × 13,091.81
  4. Step 4: Simplify right side
    38,400.15x = 754,129,207.19
  5. Step 5: Solve for x
    x = 754,129,207.19/38,400.15
  6. Step 6: Final answer
    x = 19,638.70

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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.