Home / 28,454.88-42,671.36-19,663.14

Finding the Fourth Proportional to 28,454.88, 42,671.36 and 19,663.14

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Solution

The fourth proportional to 28,454.88, 42,671.36 and 19,663.14 is: 29,487.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,454.88 : 42,671.36 = 19,663.14 : x
  2. Step 2: Convert to fraction form
    28,454.88/42,671.36 = 19,663.14/x
  3. Step 3: Cross multiply
    28,454.88x = 42,671.36 × 19,663.14
  4. Step 4: Simplify right side
    28,454.88x = 839,052,925.67
  5. Step 5: Solve for x
    x = 839,052,925.67/28,454.88
  6. Step 6: Final answer
    x = 29,487.14

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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.