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Finding the Fourth Proportional to 25,875.78, 35,689.98 and 15,257.89

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Solution

The fourth proportional to 25,875.78, 35,689.98 and 15,257.89 is: 21,044.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,875.78 : 35,689.98 = 15,257.89 : x
  2. Step 2: Convert to fraction form
    25,875.78/35,689.98 = 15,257.89/x
  3. Step 3: Cross multiply
    25,875.78x = 35,689.98 × 15,257.89
  4. Step 4: Simplify right side
    25,875.78x = 544,553,788.94
  5. Step 5: Solve for x
    x = 544,553,788.94/25,875.78
  6. Step 6: Final answer
    x = 21,044.92

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.