Home / 21,291.52-31,938.48-6,502.72

Finding the Fourth Proportional to 21,291.52, 31,938.48 and 6,502.72

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Solution

The fourth proportional to 21,291.52, 31,938.48 and 6,502.72 is: 9,754.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,291.52 : 31,938.48 = 6,502.72 : x
  2. Step 2: Convert to fraction form
    21,291.52/31,938.48 = 6,502.72/x
  3. Step 3: Cross multiply
    21,291.52x = 31,938.48 × 6,502.72
  4. Step 4: Simplify right side
    21,291.52x = 207,686,992.67
  5. Step 5: Solve for x
    x = 207,686,992.67/21,291.52
  6. Step 6: Final answer
    x = 9,754.45

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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.