Home / 15,981.28-22,075.68-14,490.88

Finding the Fourth Proportional to 15,981.28, 22,075.68 and 14,490.88

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Solution

The fourth proportional to 15,981.28, 22,075.68 and 14,490.88 is: 20,016.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,981.28 : 22,075.68 = 14,490.88 : x
  2. Step 2: Convert to fraction form
    15,981.28/22,075.68 = 14,490.88/x
  3. Step 3: Cross multiply
    15,981.28x = 22,075.68 × 14,490.88
  4. Step 4: Simplify right side
    15,981.28x = 319,896,029.80
  5. Step 5: Solve for x
    x = 319,896,029.80/15,981.28
  6. Step 6: Final answer
    x = 20,016.92

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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.