Home / 21,289.36-31,937.46-7,250.26

Finding the Fourth Proportional to 21,289.36, 31,937.46 and 7,250.26

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Solution

The fourth proportional to 21,289.36, 31,937.46 and 7,250.26 is: 10,876.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,289.36 : 31,937.46 = 7,250.26 : x
  2. Step 2: Convert to fraction form
    21,289.36/31,937.46 = 7,250.26/x
  3. Step 3: Cross multiply
    21,289.36x = 31,937.46 × 7,250.26
  4. Step 4: Simplify right side
    21,289.36x = 231,554,888.74
  5. Step 5: Solve for x
    x = 231,554,888.74/21,289.36
  6. Step 6: Final answer
    x = 10,876.55

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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.