Home / 20,360.12-30,551.12-8,681.52

Finding the Fourth Proportional to 20,360.12, 30,551.12 and 8,681.52

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Solution

The fourth proportional to 20,360.12, 30,551.12 and 8,681.52 is: 13,026.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,360.12 : 30,551.12 = 8,681.52 : x
  2. Step 2: Convert to fraction form
    20,360.12/30,551.12 = 8,681.52/x
  3. Step 3: Cross multiply
    20,360.12x = 30,551.12 × 8,681.52
  4. Step 4: Simplify right side
    20,360.12x = 265,230,159.30
  5. Step 5: Solve for x
    x = 265,230,159.30/20,360.12
  6. Step 6: Final answer
    x = 13,026.94

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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.