Home / 21,324.39-31,986.74-5,528.35

Finding the Fourth Proportional to 21,324.39, 31,986.74 and 5,528.35

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Solution

The fourth proportional to 21,324.39, 31,986.74 and 5,528.35 is: 8,292.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,324.39 : 31,986.74 = 5,528.35 : x
  2. Step 2: Convert to fraction form
    21,324.39/31,986.74 = 5,528.35/x
  3. Step 3: Cross multiply
    21,324.39x = 31,986.74 × 5,528.35
  4. Step 4: Simplify right side
    21,324.39x = 176,833,894.08
  5. Step 5: Solve for x
    x = 176,833,894.08/21,324.39
  6. Step 6: Final answer
    x = 8,292.57

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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.