Home / 25,428.29-38,105.57-18,047.16

Finding the Fourth Proportional to 25,428.29, 38,105.57 and 18,047.16

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Solution

The fourth proportional to 25,428.29, 38,105.57 and 18,047.16 is: 27,044.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,428.29 : 38,105.57 = 18,047.16 : x
  2. Step 2: Convert to fraction form
    25,428.29/38,105.57 = 18,047.16/x
  3. Step 3: Cross multiply
    25,428.29x = 38,105.57 × 18,047.16
  4. Step 4: Simplify right side
    25,428.29x = 687,697,363.80
  5. Step 5: Solve for x
    x = 687,697,363.80/25,428.29
  6. Step 6: Final answer
    x = 27,044.58

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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.