Home / 21,844.08-30,158.58-15,484.14

Finding the Fourth Proportional to 21,844.08, 30,158.58 and 15,484.14

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Solution

The fourth proportional to 21,844.08, 30,158.58 and 15,484.14 is: 21,377.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,844.08 : 30,158.58 = 15,484.14 : x
  2. Step 2: Convert to fraction form
    21,844.08/30,158.58 = 15,484.14/x
  3. Step 3: Cross multiply
    21,844.08x = 30,158.58 × 15,484.14
  4. Step 4: Simplify right side
    21,844.08x = 466,979,674.92
  5. Step 5: Solve for x
    x = 466,979,674.92/21,844.08
  6. Step 6: Final answer
    x = 21,377.86

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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.