Home / 21,953.20-32,929.80-10,279.48

Finding the Fourth Proportional to 21,953.20, 32,929.80 and 10,279.48

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Solution

The fourth proportional to 21,953.20, 32,929.80 and 10,279.48 is: 15,419.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,953.20 : 32,929.80 = 10,279.48 : x
  2. Step 2: Convert to fraction form
    21,953.20/32,929.80 = 10,279.48/x
  3. Step 3: Cross multiply
    21,953.20x = 32,929.80 × 10,279.48
  4. Step 4: Simplify right side
    21,953.20x = 338,501,220.50
  5. Step 5: Solve for x
    x = 338,501,220.50/21,953.20
  6. Step 6: Final answer
    x = 15,419.22

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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.