Home / 28,497.60-39,340.08-21,247.83

Finding the Fourth Proportional to 28,497.60, 39,340.08 and 21,247.83

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Solution

The fourth proportional to 28,497.60, 39,340.08 and 21,247.83 is: 29,331.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,497.60 : 39,340.08 = 21,247.83 : x
  2. Step 2: Convert to fraction form
    28,497.60/39,340.08 = 21,247.83/x
  3. Step 3: Cross multiply
    28,497.60x = 39,340.08 × 21,247.83
  4. Step 4: Simplify right side
    28,497.60x = 835,891,332.03
  5. Step 5: Solve for x
    x = 835,891,332.03/28,497.60
  6. Step 6: Final answer
    x = 29,331.99

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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.