Home / 28,161.70-42,256.62-13,162.52

Finding the Fourth Proportional to 28,161.70, 42,256.62 and 13,162.52

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Solution

The fourth proportional to 28,161.70, 42,256.62 and 13,162.52 is: 19,750.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,161.70 : 42,256.62 = 13,162.52 : x
  2. Step 2: Convert to fraction form
    28,161.70/42,256.62 = 13,162.52/x
  3. Step 3: Cross multiply
    28,161.70x = 42,256.62 × 13,162.52
  4. Step 4: Simplify right side
    28,161.70x = 556,203,711.52
  5. Step 5: Solve for x
    x = 556,203,711.52/28,161.70
  6. Step 6: Final answer
    x = 19,750.36

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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.