Home / 21,375.63-32,069.93-10,279.17

Finding the Fourth Proportional to 21,375.63, 32,069.93 and 10,279.17

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Solution

The fourth proportional to 21,375.63, 32,069.93 and 10,279.17 is: 15,421.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,375.63 : 32,069.93 = 10,279.17 : x
  2. Step 2: Convert to fraction form
    21,375.63/32,069.93 = 10,279.17/x
  3. Step 3: Cross multiply
    21,375.63x = 32,069.93 × 10,279.17
  4. Step 4: Simplify right side
    21,375.63x = 329,652,210.96
  5. Step 5: Solve for x
    x = 329,652,210.96/21,375.63
  6. Step 6: Final answer
    x = 15,421.87

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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.