Home / 20,547.40-30,821.31-6,507.17

Finding the Fourth Proportional to 20,547.40, 30,821.31 and 6,507.17

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Solution

The fourth proportional to 20,547.40, 30,821.31 and 6,507.17 is: 9,760.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,547.40 : 30,821.31 = 6,507.17 : x
  2. Step 2: Convert to fraction form
    20,547.40/30,821.31 = 6,507.17/x
  3. Step 3: Cross multiply
    20,547.40x = 30,821.31 × 6,507.17
  4. Step 4: Simplify right side
    20,547.40x = 200,559,503.79
  5. Step 5: Solve for x
    x = 200,559,503.79/20,547.40
  6. Step 6: Final answer
    x = 9,760.82

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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.