Home / 26,988.36-37,250.61-18,388.76

Finding the Fourth Proportional to 26,988.36, 37,250.61 and 18,388.76

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Solution

The fourth proportional to 26,988.36, 37,250.61 and 18,388.76 is: 25,381.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,988.36 : 37,250.61 = 18,388.76 : x
  2. Step 2: Convert to fraction form
    26,988.36/37,250.61 = 18,388.76/x
  3. Step 3: Cross multiply
    26,988.36x = 37,250.61 × 18,388.76
  4. Step 4: Simplify right side
    26,988.36x = 684,992,527.14
  5. Step 5: Solve for x
    x = 684,992,527.14/26,988.36
  6. Step 6: Final answer
    x = 25,381.04

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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.