Home / 21,252-31,924.98-13,868.04

Finding the Fourth Proportional to 21,252, 31,924.98 and 13,868.04

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Solution

The fourth proportional to 21,252, 31,924.98 and 13,868.04 is: 20,832.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,252 : 31,924.98 = 13,868.04 : x
  2. Step 2: Convert to fraction form
    21,252/31,924.98 = 13,868.04/x
  3. Step 3: Cross multiply
    21,252x = 31,924.98 × 13,868.04
  4. Step 4: Simplify right side
    21,252x = 442,736,899.64
  5. Step 5: Solve for x
    x = 442,736,899.64/21,252
  6. Step 6: Final answer
    x = 20,832.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.