Home / 20,547.26-30,820.62-4,964.78

Finding the Fourth Proportional to 20,547.26, 30,820.62 and 4,964.78

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Solution

The fourth proportional to 20,547.26, 30,820.62 and 4,964.78 is: 7,447.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,547.26 : 30,820.62 = 4,964.78 : x
  2. Step 2: Convert to fraction form
    20,547.26/30,820.62 = 4,964.78/x
  3. Step 3: Cross multiply
    20,547.26x = 30,820.62 × 4,964.78
  4. Step 4: Simplify right side
    20,547.26x = 153,017,597.76
  5. Step 5: Solve for x
    x = 153,017,597.76/20,547.26
  6. Step 6: Final answer
    x = 7,447.10

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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.