Home / 55,031.38-82,547.26-13,478.38

Finding the Fourth Proportional to 55,031.38, 82,547.26 and 13,478.38

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Solution

The fourth proportional to 55,031.38, 82,547.26 and 13,478.38 is: 20,217.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,031.38 : 82,547.26 = 13,478.38 : x
  2. Step 2: Convert to fraction form
    55,031.38/82,547.26 = 13,478.38/x
  3. Step 3: Cross multiply
    55,031.38x = 82,547.26 × 13,478.38
  4. Step 4: Simplify right side
    55,031.38x = 1,112,603,338.24
  5. Step 5: Solve for x
    x = 1,112,603,338.24/55,031.38
  6. Step 6: Final answer
    x = 20,217.62

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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.