Home / 26,983.86-40,484.75-11,988.89

Finding the Fourth Proportional to 26,983.86, 40,484.75 and 11,988.89

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Solution

The fourth proportional to 26,983.86, 40,484.75 and 11,988.89 is: 17,987.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,983.86 : 40,484.75 = 11,988.89 : x
  2. Step 2: Convert to fraction form
    26,983.86/40,484.75 = 11,988.89/x
  3. Step 3: Cross multiply
    26,983.86x = 40,484.75 × 11,988.89
  4. Step 4: Simplify right side
    26,983.86x = 485,367,432.76
  5. Step 5: Solve for x
    x = 485,367,432.76/26,983.86
  6. Step 6: Final answer
    x = 17,987.32

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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.