Home / 21,248.88-29,324.40-12,296.80

Finding the Fourth Proportional to 21,248.88, 29,324.40 and 12,296.80

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Solution

The fourth proportional to 21,248.88, 29,324.40 and 12,296.80 is: 16,970.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,248.88 : 29,324.40 = 12,296.80 : x
  2. Step 2: Convert to fraction form
    21,248.88/29,324.40 = 12,296.80/x
  3. Step 3: Cross multiply
    21,248.88x = 29,324.40 × 12,296.80
  4. Step 4: Simplify right side
    21,248.88x = 360,596,281.92
  5. Step 5: Solve for x
    x = 360,596,281.92/21,248.88
  6. Step 6: Final answer
    x = 16,970.13

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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.