Home / 25,478.23-38,199.90-12,974.05

Finding the Fourth Proportional to 25,478.23, 38,199.90 and 12,974.05

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Solution

The fourth proportional to 25,478.23, 38,199.90 and 12,974.05 is: 19,452.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,478.23 : 38,199.90 = 12,974.05 : x
  2. Step 2: Convert to fraction form
    25,478.23/38,199.90 = 12,974.05/x
  3. Step 3: Cross multiply
    25,478.23x = 38,199.90 × 12,974.05
  4. Step 4: Simplify right side
    25,478.23x = 495,607,268.44
  5. Step 5: Solve for x
    x = 495,607,268.44/25,478.23
  6. Step 6: Final answer
    x = 19,452.19

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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.