Home / 25,818.40-38,727.60-15,968.80

Finding the Fourth Proportional to 25,818.40, 38,727.60 and 15,968.80

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Solution

The fourth proportional to 25,818.40, 38,727.60 and 15,968.80 is: 23,953.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,818.40 : 38,727.60 = 15,968.80 : x
  2. Step 2: Convert to fraction form
    25,818.40/38,727.60 = 15,968.80/x
  3. Step 3: Cross multiply
    25,818.40x = 38,727.60 × 15,968.80
  4. Step 4: Simplify right side
    25,818.40x = 618,433,298.88
  5. Step 5: Solve for x
    x = 618,433,298.88/25,818.40
  6. Step 6: Final answer
    x = 23,953.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.