Home / 21,448.76-29,599.20-12,017.30

Finding the Fourth Proportional to 21,448.76, 29,599.20 and 12,017.30

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Solution

The fourth proportional to 21,448.76, 29,599.20 and 12,017.30 is: 16,583.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,448.76 : 29,599.20 = 12,017.30 : x
  2. Step 2: Convert to fraction form
    21,448.76/29,599.20 = 12,017.30/x
  3. Step 3: Cross multiply
    21,448.76x = 29,599.20 × 12,017.30
  4. Step 4: Simplify right side
    21,448.76x = 355,702,318.16
  5. Step 5: Solve for x
    x = 355,702,318.16/21,448.76
  6. Step 6: Final answer
    x = 16,583.82

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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.