Home / 21,368.97-29,487.02-12,416.85

Finding the Fourth Proportional to 21,368.97, 29,487.02 and 12,416.85

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Solution

The fourth proportional to 21,368.97, 29,487.02 and 12,416.85 is: 17,134.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,368.97 : 29,487.02 = 12,416.85 : x
  2. Step 2: Convert to fraction form
    21,368.97/29,487.02 = 12,416.85/x
  3. Step 3: Cross multiply
    21,368.97x = 29,487.02 × 12,416.85
  4. Step 4: Simplify right side
    21,368.97x = 366,135,842.20
  5. Step 5: Solve for x
    x = 366,135,842.20/21,368.97
  6. Step 6: Final answer
    x = 17,134.00

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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.