Home / 20,275.67-30,377.06-12,374.07

Finding the Fourth Proportional to 20,275.67, 30,377.06 and 12,374.07

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Solution

The fourth proportional to 20,275.67, 30,377.06 and 12,374.07 is: 18,538.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,275.67 : 30,377.06 = 12,374.07 : x
  2. Step 2: Convert to fraction form
    20,275.67/30,377.06 = 12,374.07/x
  3. Step 3: Cross multiply
    20,275.67x = 30,377.06 × 12,374.07
  4. Step 4: Simplify right side
    20,275.67x = 375,887,908.32
  5. Step 5: Solve for x
    x = 375,887,908.32/20,275.67
  6. Step 6: Final answer
    x = 18,538.86

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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.