Home / 39,803.16-54,909.98-25,660.56

Finding the Fourth Proportional to 39,803.16, 54,909.98 and 25,660.56

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Solution

The fourth proportional to 39,803.16, 54,909.98 and 25,660.56 is: 35,399.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,803.16 : 54,909.98 = 25,660.56 : x
  2. Step 2: Convert to fraction form
    39,803.16/54,909.98 = 25,660.56/x
  3. Step 3: Cross multiply
    39,803.16x = 54,909.98 × 25,660.56
  4. Step 4: Simplify right side
    39,803.16x = 1,409,020,836.39
  5. Step 5: Solve for x
    x = 1,409,020,836.39/39,803.16
  6. Step 6: Final answer
    x = 35,399.72

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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.