Home / 21,454.90-29,607.80-12,023.46

Finding the Fourth Proportional to 21,454.90, 29,607.80 and 12,023.46

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Solution

The fourth proportional to 21,454.90, 29,607.80 and 12,023.46 is: 16,592.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,454.90 : 29,607.80 = 12,023.46 : x
  2. Step 2: Convert to fraction form
    21,454.90/29,607.80 = 12,023.46/x
  3. Step 3: Cross multiply
    21,454.90x = 29,607.80 × 12,023.46
  4. Step 4: Simplify right side
    21,454.90x = 355,988,138.87
  5. Step 5: Solve for x
    x = 355,988,138.87/21,454.90
  6. Step 6: Final answer
    x = 16,592.40

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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.