Home / 29,372.84-40,545.30-21,455.72

Finding the Fourth Proportional to 29,372.84, 40,545.30 and 21,455.72

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Solution

The fourth proportional to 29,372.84, 40,545.30 and 21,455.72 is: 29,616.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,372.84 : 40,545.30 = 21,455.72 : x
  2. Step 2: Convert to fraction form
    29,372.84/40,545.30 = 21,455.72/x
  3. Step 3: Cross multiply
    29,372.84x = 40,545.30 × 21,455.72
  4. Step 4: Simplify right side
    29,372.84x = 869,928,604.12
  5. Step 5: Solve for x
    x = 869,928,604.12/29,372.84
  6. Step 6: Final answer
    x = 29,616.77

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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.