Home / 25,288.40-34,903.61-18,934.56

Finding the Fourth Proportional to 25,288.40, 34,903.61 and 18,934.56

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Solution

The fourth proportional to 25,288.40, 34,903.61 and 18,934.56 is: 26,133.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,288.40 : 34,903.61 = 18,934.56 : x
  2. Step 2: Convert to fraction form
    25,288.40/34,903.61 = 18,934.56/x
  3. Step 3: Cross multiply
    25,288.40x = 34,903.61 × 18,934.56
  4. Step 4: Simplify right side
    25,288.40x = 660,884,474.09
  5. Step 5: Solve for x
    x = 660,884,474.09/25,288.40
  6. Step 6: Final answer
    x = 26,133.90

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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.