Home / 21,274.06-31,925.67-7,423.06

Finding the Fourth Proportional to 21,274.06, 31,925.67 and 7,423.06

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Solution

The fourth proportional to 21,274.06, 31,925.67 and 7,423.06 is: 11,139.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,274.06 : 31,925.67 = 7,423.06 : x
  2. Step 2: Convert to fraction form
    21,274.06/31,925.67 = 7,423.06/x
  3. Step 3: Cross multiply
    21,274.06x = 31,925.67 × 7,423.06
  4. Step 4: Simplify right side
    21,274.06x = 236,986,163.95
  5. Step 5: Solve for x
    x = 236,986,163.95/21,274.06
  6. Step 6: Final answer
    x = 11,139.68

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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.