Home / 20,247.40-30,371.10-7,095.40

Finding the Fourth Proportional to 20,247.40, 30,371.10 and 7,095.40

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Solution

The fourth proportional to 20,247.40, 30,371.10 and 7,095.40 is: 10,643.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,247.40 : 30,371.10 = 7,095.40 : x
  2. Step 2: Convert to fraction form
    20,247.40/30,371.10 = 7,095.40/x
  3. Step 3: Cross multiply
    20,247.40x = 30,371.10 × 7,095.40
  4. Step 4: Simplify right side
    20,247.40x = 215,495,102.94
  5. Step 5: Solve for x
    x = 215,495,102.94/20,247.40
  6. Step 6: Final answer
    x = 10,643.10

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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.