Home / 23,856.96-32,931.40-20,486.20

Finding the Fourth Proportional to 23,856.96, 32,931.40 and 20,486.20

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Solution

The fourth proportional to 23,856.96, 32,931.40 and 20,486.20 is: 28,278.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,856.96 : 32,931.40 = 20,486.20 : x
  2. Step 2: Convert to fraction form
    23,856.96/32,931.40 = 20,486.20/x
  3. Step 3: Cross multiply
    23,856.96x = 32,931.40 × 20,486.20
  4. Step 4: Simplify right side
    23,856.96x = 674,639,246.68
  5. Step 5: Solve for x
    x = 674,639,246.68/23,856.96
  6. Step 6: Final answer
    x = 28,278.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.