Home / 21,454.45-29,607.15-13,070.95

Finding the Fourth Proportional to 21,454.45, 29,607.15 and 13,070.95

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Solution

The fourth proportional to 21,454.45, 29,607.15 and 13,070.95 is: 18,037.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,454.45 : 29,607.15 = 13,070.95 : x
  2. Step 2: Convert to fraction form
    21,454.45/29,607.15 = 13,070.95/x
  3. Step 3: Cross multiply
    21,454.45x = 29,607.15 × 13,070.95
  4. Step 4: Simplify right side
    21,454.45x = 386,993,577.29
  5. Step 5: Solve for x
    x = 386,993,577.29/21,454.45
  6. Step 6: Final answer
    x = 18,037.92

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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.