Home / 26,988.91-40,483.76-12,187.51

Finding the Fourth Proportional to 26,988.91, 40,483.76 and 12,187.51

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Solution

The fourth proportional to 26,988.91, 40,483.76 and 12,187.51 is: 18,281.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,988.91 : 40,483.76 = 12,187.51 : x
  2. Step 2: Convert to fraction form
    26,988.91/40,483.76 = 12,187.51/x
  3. Step 3: Cross multiply
    26,988.91x = 40,483.76 × 12,187.51
  4. Step 4: Simplify right side
    26,988.91x = 493,396,229.84
  5. Step 5: Solve for x
    x = 493,396,229.84/26,988.91
  6. Step 6: Final answer
    x = 18,281.44

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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.