Home / 30,983.40-42,756.17-16,836.26

Finding the Fourth Proportional to 30,983.40, 42,756.17 and 16,836.26

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Solution

The fourth proportional to 30,983.40, 42,756.17 and 16,836.26 is: 23,233.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,983.40 : 42,756.17 = 16,836.26 : x
  2. Step 2: Convert to fraction form
    30,983.40/42,756.17 = 16,836.26/x
  3. Step 3: Cross multiply
    30,983.40x = 42,756.17 × 16,836.26
  4. Step 4: Simplify right side
    30,983.40x = 719,853,696.76
  5. Step 5: Solve for x
    x = 719,853,696.76/30,983.40
  6. Step 6: Final answer
    x = 23,233.53

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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.