Home / 35,990.12-53,985.15-12,616.58

Finding the Fourth Proportional to 35,990.12, 53,985.15 and 12,616.58

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Solution

The fourth proportional to 35,990.12, 53,985.15 and 12,616.58 is: 18,924.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,990.12 : 53,985.15 = 12,616.58 : x
  2. Step 2: Convert to fraction form
    35,990.12/53,985.15 = 12,616.58/x
  3. Step 3: Cross multiply
    35,990.12x = 53,985.15 × 12,616.58
  4. Step 4: Simplify right side
    35,990.12x = 681,107,693.86
  5. Step 5: Solve for x
    x = 681,107,693.86/35,990.12
  6. Step 6: Final answer
    x = 18,924.85

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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.