Home / 28,217.28-42,119.88-26,161.50

Finding the Fourth Proportional to 28,217.28, 42,119.88 and 26,161.50

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Solution

The fourth proportional to 28,217.28, 42,119.88 and 26,161.50 is: 39,051.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,217.28 : 42,119.88 = 26,161.50 : x
  2. Step 2: Convert to fraction form
    28,217.28/42,119.88 = 26,161.50/x
  3. Step 3: Cross multiply
    28,217.28x = 42,119.88 × 26,161.50
  4. Step 4: Simplify right side
    28,217.28x = 1,101,919,240.62
  5. Step 5: Solve for x
    x = 1,101,919,240.62/28,217.28
  6. Step 6: Final answer
    x = 39,051.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.