Home / 21,378.52-32,068.32-10,131.22

Finding the Fourth Proportional to 21,378.52, 32,068.32 and 10,131.22

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Solution

The fourth proportional to 21,378.52, 32,068.32 and 10,131.22 is: 15,197.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,378.52 : 32,068.32 = 10,131.22 : x
  2. Step 2: Convert to fraction form
    21,378.52/32,068.32 = 10,131.22/x
  3. Step 3: Cross multiply
    21,378.52x = 32,068.32 × 10,131.22
  4. Step 4: Simplify right side
    21,378.52x = 324,891,124.78
  5. Step 5: Solve for x
    x = 324,891,124.78/21,378.52
  6. Step 6: Final answer
    x = 15,197.08

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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.