Home / 20,152.13-30,205.38-10,270.53

Finding the Fourth Proportional to 20,152.13, 30,205.38 and 10,270.53

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Solution

The fourth proportional to 20,152.13, 30,205.38 and 10,270.53 is: 15,394.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,152.13 : 30,205.38 = 10,270.53 : x
  2. Step 2: Convert to fraction form
    20,152.13/30,205.38 = 10,270.53/x
  3. Step 3: Cross multiply
    20,152.13x = 30,205.38 × 10,270.53
  4. Step 4: Simplify right side
    20,152.13x = 310,225,261.45
  5. Step 5: Solve for x
    x = 310,225,261.45/20,152.13
  6. Step 6: Final answer
    x = 15,394.17

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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.