Home / 35,781.35-53,671.95-12,391.38

Finding the Fourth Proportional to 35,781.35, 53,671.95 and 12,391.38

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Solution

The fourth proportional to 35,781.35, 53,671.95 and 12,391.38 is: 18,587.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,781.35 : 53,671.95 = 12,391.38 : x
  2. Step 2: Convert to fraction form
    35,781.35/53,671.95 = 12,391.38/x
  3. Step 3: Cross multiply
    35,781.35x = 53,671.95 × 12,391.38
  4. Step 4: Simplify right side
    35,781.35x = 665,069,527.79
  5. Step 5: Solve for x
    x = 665,069,527.79/35,781.35
  6. Step 6: Final answer
    x = 18,587.05

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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.