Home / 16,947.81-23,380.11-10,981.49

Finding the Fourth Proportional to 16,947.81, 23,380.11 and 10,981.49

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Solution

The fourth proportional to 16,947.81, 23,380.11 and 10,981.49 is: 15,149.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,947.81 : 23,380.11 = 10,981.49 : x
  2. Step 2: Convert to fraction form
    16,947.81/23,380.11 = 10,981.49/x
  3. Step 3: Cross multiply
    16,947.81x = 23,380.11 × 10,981.49
  4. Step 4: Simplify right side
    16,947.81x = 256,748,327.26
  5. Step 5: Solve for x
    x = 256,748,327.26/16,947.81
  6. Step 6: Final answer
    x = 15,149.35

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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.