Home / 21,095.12-31,654.98-7,948.52

Finding the Fourth Proportional to 21,095.12, 31,654.98 and 7,948.52

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Solution

The fourth proportional to 21,095.12, 31,654.98 and 7,948.52 is: 11,927.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,095.12 : 31,654.98 = 7,948.52 : x
  2. Step 2: Convert to fraction form
    21,095.12/31,654.98 = 7,948.52/x
  3. Step 3: Cross multiply
    21,095.12x = 31,654.98 × 7,948.52
  4. Step 4: Simplify right side
    21,095.12x = 251,610,083.35
  5. Step 5: Solve for x
    x = 251,610,083.35/21,095.12
  6. Step 6: Final answer
    x = 11,927.41

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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.