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Finding the Fourth Proportional to 26,510.31, 39,765.45 and 12,460.02

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Solution

The fourth proportional to 26,510.31, 39,765.45 and 12,460.02 is: 18,690.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,510.31 : 39,765.45 = 12,460.02 : x
  2. Step 2: Convert to fraction form
    26,510.31/39,765.45 = 12,460.02/x
  3. Step 3: Cross multiply
    26,510.31x = 39,765.45 × 12,460.02
  4. Step 4: Simplify right side
    26,510.31x = 495,478,302.31
  5. Step 5: Solve for x
    x = 495,478,302.31/26,510.31
  6. Step 6: Final answer
    x = 18,690.02

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.