Home / 20,430.38-30,639.06-6,576.14

Finding the Fourth Proportional to 20,430.38, 30,639.06 and 6,576.14

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Solution

The fourth proportional to 20,430.38, 30,639.06 and 6,576.14 is: 9,862.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,430.38 : 30,639.06 = 6,576.14 : x
  2. Step 2: Convert to fraction form
    20,430.38/30,639.06 = 6,576.14/x
  3. Step 3: Cross multiply
    20,430.38x = 30,639.06 × 6,576.14
  4. Step 4: Simplify right side
    20,430.38x = 201,486,748.03
  5. Step 5: Solve for x
    x = 201,486,748.03/20,430.38
  6. Step 6: Final answer
    x = 9,862.11

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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.