Home / 21,295.52-31,944.48-6,506.72

Finding the Fourth Proportional to 21,295.52, 31,944.48 and 6,506.72

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Solution

The fourth proportional to 21,295.52, 31,944.48 and 6,506.72 is: 9,760.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,295.52 : 31,944.48 = 6,506.72 : x
  2. Step 2: Convert to fraction form
    21,295.52/31,944.48 = 6,506.72/x
  3. Step 3: Cross multiply
    21,295.52x = 31,944.48 × 6,506.72
  4. Step 4: Simplify right side
    21,295.52x = 207,853,786.91
  5. Step 5: Solve for x
    x = 207,853,786.91/21,295.52
  6. Step 6: Final answer
    x = 9,760.45

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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.