Home / 20,488.68-30,731.94-5,698.44

Finding the Fourth Proportional to 20,488.68, 30,731.94 and 5,698.44

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Solution

The fourth proportional to 20,488.68, 30,731.94 and 5,698.44 is: 8,547.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,488.68 : 30,731.94 = 5,698.44 : x
  2. Step 2: Convert to fraction form
    20,488.68/30,731.94 = 5,698.44/x
  3. Step 3: Cross multiply
    20,488.68x = 30,731.94 × 5,698.44
  4. Step 4: Simplify right side
    20,488.68x = 175,124,116.17
  5. Step 5: Solve for x
    x = 175,124,116.17/20,488.68
  6. Step 6: Final answer
    x = 8,547.36

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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.