Home / 21,267.27-29,348.91-12,315.24

Finding the Fourth Proportional to 21,267.27, 29,348.91 and 12,315.24

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Solution

The fourth proportional to 21,267.27, 29,348.91 and 12,315.24 is: 16,995.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,267.27 : 29,348.91 = 12,315.24 : x
  2. Step 2: Convert to fraction form
    21,267.27/29,348.91 = 12,315.24/x
  3. Step 3: Cross multiply
    21,267.27x = 29,348.91 × 12,315.24
  4. Step 4: Simplify right side
    21,267.27x = 361,438,870.39
  5. Step 5: Solve for x
    x = 361,438,870.39/21,267.27
  6. Step 6: Final answer
    x = 16,995.08

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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.