Home / 18,139.30-27,176.55-15,547.30

Finding the Fourth Proportional to 18,139.30, 27,176.55 and 15,547.30

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Solution

The fourth proportional to 18,139.30, 27,176.55 and 15,547.30 is: 23,293.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139.30 : 27,176.55 = 15,547.30 : x
  2. Step 2: Convert to fraction form
    18,139.30/27,176.55 = 15,547.30/x
  3. Step 3: Cross multiply
    18,139.30x = 27,176.55 × 15,547.30
  4. Step 4: Simplify right side
    18,139.30x = 422,521,975.82
  5. Step 5: Solve for x
    x = 422,521,975.82/18,139.30
  6. Step 6: Final answer
    x = 23,293.18

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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.