Home / 30,510.20-42,102.05-17,079.19

Finding the Fourth Proportional to 30,510.20, 42,102.05 and 17,079.19

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Solution

The fourth proportional to 30,510.20, 42,102.05 and 17,079.19 is: 23,568.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,510.20 : 42,102.05 = 17,079.19 : x
  2. Step 2: Convert to fraction form
    30,510.20/42,102.05 = 17,079.19/x
  3. Step 3: Cross multiply
    30,510.20x = 42,102.05 × 17,079.19
  4. Step 4: Simplify right side
    30,510.20x = 719,068,720.69
  5. Step 5: Solve for x
    x = 719,068,720.69/30,510.20
  6. Step 6: Final answer
    x = 23,568.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.