Home / 25,340.16-38,013.12-7,814.40

Finding the Fourth Proportional to 25,340.16, 38,013.12 and 7,814.40

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Solution

The fourth proportional to 25,340.16, 38,013.12 and 7,814.40 is: 11,722.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,340.16 : 38,013.12 = 7,814.40 : x
  2. Step 2: Convert to fraction form
    25,340.16/38,013.12 = 7,814.40/x
  3. Step 3: Cross multiply
    25,340.16x = 38,013.12 × 7,814.40
  4. Step 4: Simplify right side
    25,340.16x = 297,049,724.93
  5. Step 5: Solve for x
    x = 297,049,724.93/25,340.16
  6. Step 6: Final answer
    x = 11,722.49

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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.