Home / 33,061.12-45,628.51-20,487.76

Finding the Fourth Proportional to 33,061.12, 45,628.51 and 20,487.76

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Solution

The fourth proportional to 33,061.12, 45,628.51 and 20,487.76 is: 28,275.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,061.12 : 45,628.51 = 20,487.76 : x
  2. Step 2: Convert to fraction form
    33,061.12/45,628.51 = 20,487.76/x
  3. Step 3: Cross multiply
    33,061.12x = 45,628.51 × 20,487.76
  4. Step 4: Simplify right side
    33,061.12x = 934,825,733.90
  5. Step 5: Solve for x
    x = 934,825,733.90/33,061.12
  6. Step 6: Final answer
    x = 28,275.69

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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.