Home / 21,658.48-29,872.16-14,955.32

Finding the Fourth Proportional to 21,658.48, 29,872.16 and 14,955.32

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Solution

The fourth proportional to 21,658.48, 29,872.16 and 14,955.32 is: 20,626.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,658.48 : 29,872.16 = 14,955.32 : x
  2. Step 2: Convert to fraction form
    21,658.48/29,872.16 = 14,955.32/x
  3. Step 3: Cross multiply
    21,658.48x = 29,872.16 × 14,955.32
  4. Step 4: Simplify right side
    21,658.48x = 446,747,711.89
  5. Step 5: Solve for x
    x = 446,747,711.89/21,658.48
  6. Step 6: Final answer
    x = 20,626.92

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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.