Home / 23,216.29-31,965.64-20,488.01

Finding the Fourth Proportional to 23,216.29, 31,965.64 and 20,488.01

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Solution

The fourth proportional to 23,216.29, 31,965.64 and 20,488.01 is: 28,209.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,216.29 : 31,965.64 = 20,488.01 : x
  2. Step 2: Convert to fraction form
    23,216.29/31,965.64 = 20,488.01/x
  3. Step 3: Cross multiply
    23,216.29x = 31,965.64 × 20,488.01
  4. Step 4: Simplify right side
    23,216.29x = 654,912,140.93
  5. Step 5: Solve for x
    x = 654,912,140.93/23,216.29
  6. Step 6: Final answer
    x = 28,209.17

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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.