Home / 28,424.04-39,246.06-18,358.38

Finding the Fourth Proportional to 28,424.04, 39,246.06 and 18,358.38

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Solution

The fourth proportional to 28,424.04, 39,246.06 and 18,358.38 is: 25,348.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,424.04 : 39,246.06 = 18,358.38 : x
  2. Step 2: Convert to fraction form
    28,424.04/39,246.06 = 18,358.38/x
  3. Step 3: Cross multiply
    28,424.04x = 39,246.06 × 18,358.38
  4. Step 4: Simplify right side
    28,424.04x = 720,494,082.98
  5. Step 5: Solve for x
    x = 720,494,082.98/28,424.04
  6. Step 6: Final answer
    x = 25,348.05

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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.