Home / 21,475.92-29,639.52-12,045.04

Finding the Fourth Proportional to 21,475.92, 29,639.52 and 12,045.04

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Solution

The fourth proportional to 21,475.92, 29,639.52 and 12,045.04 is: 16,623.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,475.92 : 29,639.52 = 12,045.04 : x
  2. Step 2: Convert to fraction form
    21,475.92/29,639.52 = 12,045.04/x
  3. Step 3: Cross multiply
    21,475.92x = 29,639.52 × 12,045.04
  4. Step 4: Simplify right side
    21,475.92x = 357,009,203.98
  5. Step 5: Solve for x
    x = 357,009,203.98/21,475.92
  6. Step 6: Final answer
    x = 16,623.70

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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.