Home / 34,259.39-47,275.34-20,828.78

Finding the Fourth Proportional to 34,259.39, 47,275.34 and 20,828.78

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Solution

The fourth proportional to 34,259.39, 47,275.34 and 20,828.78 is: 28,742.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,259.39 : 47,275.34 = 20,828.78 : x
  2. Step 2: Convert to fraction form
    34,259.39/47,275.34 = 20,828.78/x
  3. Step 3: Cross multiply
    34,259.39x = 47,275.34 × 20,828.78
  4. Step 4: Simplify right side
    34,259.39x = 984,687,656.29
  5. Step 5: Solve for x
    x = 984,687,656.29/34,259.39
  6. Step 6: Final answer
    x = 28,742.12

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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.