Home / 28,023.36-42,035.04-21,491.52

Finding the Fourth Proportional to 28,023.36, 42,035.04 and 21,491.52

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Solution

The fourth proportional to 28,023.36, 42,035.04 and 21,491.52 is: 32,237.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,023.36 : 42,035.04 = 21,491.52 : x
  2. Step 2: Convert to fraction form
    28,023.36/42,035.04 = 21,491.52/x
  3. Step 3: Cross multiply
    28,023.36x = 42,035.04 × 21,491.52
  4. Step 4: Simplify right side
    28,023.36x = 903,396,902.86
  5. Step 5: Solve for x
    x = 903,396,902.86/28,023.36
  6. Step 6: Final answer
    x = 32,237.28

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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.