Home / 38,712.67-58,055.07-13,405.33

Finding the Fourth Proportional to 38,712.67, 58,055.07 and 13,405.33

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Solution

The fourth proportional to 38,712.67, 58,055.07 and 13,405.33 is: 20,103.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,712.67 : 58,055.07 = 13,405.33 : x
  2. Step 2: Convert to fraction form
    38,712.67/58,055.07 = 13,405.33/x
  3. Step 3: Cross multiply
    38,712.67x = 58,055.07 × 13,405.33
  4. Step 4: Simplify right side
    38,712.67x = 778,247,371.52
  5. Step 5: Solve for x
    x = 778,247,371.52/38,712.67
  6. Step 6: Final answer
    x = 20,103.17

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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.