Home / 20,547.36-30,821.12-4,964.96

Finding the Fourth Proportional to 20,547.36, 30,821.12 and 4,964.96

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Solution

The fourth proportional to 20,547.36, 30,821.12 and 4,964.96 is: 7,447.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,547.36 : 30,821.12 = 4,964.96 : x
  2. Step 2: Convert to fraction form
    20,547.36/30,821.12 = 4,964.96/x
  3. Step 3: Cross multiply
    20,547.36x = 30,821.12 × 4,964.96
  4. Step 4: Simplify right side
    20,547.36x = 153,025,627.96
  5. Step 5: Solve for x
    x = 153,025,627.96/20,547.36
  6. Step 6: Final answer
    x = 7,447.46

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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.