Home / 35,129.60-48,478.86-19,215.52

Finding the Fourth Proportional to 35,129.60, 48,478.86 and 19,215.52

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Solution

The fourth proportional to 35,129.60, 48,478.86 and 19,215.52 is: 26,517.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,129.60 : 48,478.86 = 19,215.52 : x
  2. Step 2: Convert to fraction form
    35,129.60/48,478.86 = 19,215.52/x
  3. Step 3: Cross multiply
    35,129.60x = 48,478.86 × 19,215.52
  4. Step 4: Simplify right side
    35,129.60x = 931,546,503.91
  5. Step 5: Solve for x
    x = 931,546,503.91/35,129.60
  6. Step 6: Final answer
    x = 26,517.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.