Home / 21,500.60-29,671.04-12,069.16

Finding the Fourth Proportional to 21,500.60, 29,671.04 and 12,069.16

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Solution

The fourth proportional to 21,500.60, 29,671.04 and 12,069.16 is: 16,655.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,500.60 : 29,671.04 = 12,069.16 : x
  2. Step 2: Convert to fraction form
    21,500.60/29,671.04 = 12,069.16/x
  3. Step 3: Cross multiply
    21,500.60x = 29,671.04 × 12,069.16
  4. Step 4: Simplify right side
    21,500.60x = 358,104,485.12
  5. Step 5: Solve for x
    x = 358,104,485.12/21,500.60
  6. Step 6: Final answer
    x = 16,655.56

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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.