Home / 19,478.90-26,884.38-18,591.46

Finding the Fourth Proportional to 19,478.90, 26,884.38 and 18,591.46

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Solution

The fourth proportional to 19,478.90, 26,884.38 and 18,591.46 is: 25,659.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,478.90 : 26,884.38 = 18,591.46 : x
  2. Step 2: Convert to fraction form
    19,478.90/26,884.38 = 18,591.46/x
  3. Step 3: Cross multiply
    19,478.90x = 26,884.38 × 18,591.46
  4. Step 4: Simplify right side
    19,478.90x = 499,819,875.39
  5. Step 5: Solve for x
    x = 499,819,875.39/19,478.90
  6. Step 6: Final answer
    x = 25,659.55

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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.