Home / 20,927.61-31,535.39-17,311.23

Finding the Fourth Proportional to 20,927.61, 31,535.39 and 17,311.23

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Solution

The fourth proportional to 20,927.61, 31,535.39 and 17,311.23 is: 26,085.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,927.61 : 31,535.39 = 17,311.23 : x
  2. Step 2: Convert to fraction form
    20,927.61/31,535.39 = 17,311.23/x
  3. Step 3: Cross multiply
    20,927.61x = 31,535.39 × 17,311.23
  4. Step 4: Simplify right side
    20,927.61x = 545,916,302.87
  5. Step 5: Solve for x
    x = 545,916,302.87/20,927.61
  6. Step 6: Final answer
    x = 26,085.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.