Home / 38,580.39-57,875.22-13,615.28

Finding the Fourth Proportional to 38,580.39, 57,875.22 and 13,615.28

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Solution

The fourth proportional to 38,580.39, 57,875.22 and 13,615.28 is: 20,424.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,580.39 : 57,875.22 = 13,615.28 : x
  2. Step 2: Convert to fraction form
    38,580.39/57,875.22 = 13,615.28/x
  3. Step 3: Cross multiply
    38,580.39x = 57,875.22 × 13,615.28
  4. Step 4: Simplify right side
    38,580.39x = 787,987,325.36
  5. Step 5: Solve for x
    x = 787,987,325.36/38,580.39
  6. Step 6: Final answer
    x = 20,424.56

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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.