Home / 21,378.38-32,074.06-10,281.92

Finding the Fourth Proportional to 21,378.38, 32,074.06 and 10,281.92

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Solution

The fourth proportional to 21,378.38, 32,074.06 and 10,281.92 is: 15,426.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,378.38 : 32,074.06 = 10,281.92 : x
  2. Step 2: Convert to fraction form
    21,378.38/32,074.06 = 10,281.92/x
  3. Step 3: Cross multiply
    21,378.38x = 32,074.06 × 10,281.92
  4. Step 4: Simplify right side
    21,378.38x = 329,782,919.00
  5. Step 5: Solve for x
    x = 329,782,919.00/21,378.38
  6. Step 6: Final answer
    x = 15,426.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.