Home / 30,410.13-41,966.19-16,981.55

Finding the Fourth Proportional to 30,410.13, 41,966.19 and 16,981.55

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Solution

The fourth proportional to 30,410.13, 41,966.19 and 16,981.55 is: 23,434.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,410.13 : 41,966.19 = 16,981.55 : x
  2. Step 2: Convert to fraction form
    30,410.13/41,966.19 = 16,981.55/x
  3. Step 3: Cross multiply
    30,410.13x = 41,966.19 × 16,981.55
  4. Step 4: Simplify right side
    30,410.13x = 712,650,659.06
  5. Step 5: Solve for x
    x = 712,650,659.06/30,410.13
  6. Step 6: Final answer
    x = 23,434.65

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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.