Home / 20,439.40-30,652.56-6,585.16

Finding the Fourth Proportional to 20,439.40, 30,652.56 and 6,585.16

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Solution

The fourth proportional to 20,439.40, 30,652.56 and 6,585.16 is: 9,875.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,439.40 : 30,652.56 = 6,585.16 : x
  2. Step 2: Convert to fraction form
    20,439.40/30,652.56 = 6,585.16/x
  3. Step 3: Cross multiply
    20,439.40x = 30,652.56 × 6,585.16
  4. Step 4: Simplify right side
    20,439.40x = 201,852,012.01
  5. Step 5: Solve for x
    x = 201,852,012.01/20,439.40
  6. Step 6: Final answer
    x = 9,875.63

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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.