Home / 21,780.48-32,674.56-10,106.88

Finding the Fourth Proportional to 21,780.48, 32,674.56 and 10,106.88

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Solution

The fourth proportional to 21,780.48, 32,674.56 and 10,106.88 is: 15,162.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,780.48 : 32,674.56 = 10,106.88 : x
  2. Step 2: Convert to fraction form
    21,780.48/32,674.56 = 10,106.88/x
  3. Step 3: Cross multiply
    21,780.48x = 32,674.56 × 10,106.88
  4. Step 4: Simplify right side
    21,780.48x = 330,237,856.97
  5. Step 5: Solve for x
    x = 330,237,856.97/21,780.48
  6. Step 6: Final answer
    x = 15,162.10

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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.