Home / 21,442.98-29,591.29-12,011.55

Finding the Fourth Proportional to 21,442.98, 29,591.29 and 12,011.55

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Solution

The fourth proportional to 21,442.98, 29,591.29 and 12,011.55 is: 16,575.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,442.98 : 29,591.29 = 12,011.55 : x
  2. Step 2: Convert to fraction form
    21,442.98/29,591.29 = 12,011.55/x
  3. Step 3: Cross multiply
    21,442.98x = 29,591.29 × 12,011.55
  4. Step 4: Simplify right side
    21,442.98x = 355,437,259.40
  5. Step 5: Solve for x
    x = 355,437,259.40/21,442.98
  6. Step 6: Final answer
    x = 16,575.93

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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.