Home / 21,248.88-31,887.42-14,236.44

Finding the Fourth Proportional to 21,248.88, 31,887.42 and 14,236.44

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Solution

The fourth proportional to 21,248.88, 31,887.42 and 14,236.44 is: 21,364.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,248.88 : 31,887.42 = 14,236.44 : x
  2. Step 2: Convert to fraction form
    21,248.88/31,887.42 = 14,236.44/x
  3. Step 3: Cross multiply
    21,248.88x = 31,887.42 × 14,236.44
  4. Step 4: Simplify right side
    21,248.88x = 453,963,341.58
  5. Step 5: Solve for x
    x = 453,963,341.58/21,248.88
  6. Step 6: Final answer
    x = 21,364.11

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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.