Home / 21,228.48-29,275.02-14,437.44

Finding the Fourth Proportional to 21,228.48, 29,275.02 and 14,437.44

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Solution

The fourth proportional to 21,228.48, 29,275.02 and 14,437.44 is: 19,909.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,228.48 : 29,275.02 = 14,437.44 : x
  2. Step 2: Convert to fraction form
    21,228.48/29,275.02 = 14,437.44/x
  3. Step 3: Cross multiply
    21,228.48x = 29,275.02 × 14,437.44
  4. Step 4: Simplify right side
    21,228.48x = 422,656,344.75
  5. Step 5: Solve for x
    x = 422,656,344.75/21,228.48
  6. Step 6: Final answer
    x = 19,909.87

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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.