Home / 30,444.60-42,012.72-17,015.92

Finding the Fourth Proportional to 30,444.60, 42,012.72 and 17,015.92

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Solution

The fourth proportional to 30,444.60, 42,012.72 and 17,015.92 is: 23,481.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,444.60 : 42,012.72 = 17,015.92 : x
  2. Step 2: Convert to fraction form
    30,444.60/42,012.72 = 17,015.92/x
  3. Step 3: Cross multiply
    30,444.60x = 42,012.72 × 17,015.92
  4. Step 4: Simplify right side
    30,444.60x = 714,885,082.50
  5. Step 5: Solve for x
    x = 714,885,082.50/30,444.60
  6. Step 6: Final answer
    x = 23,481.51

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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.