Home / 26,583.40-39,875.10-8,115.40

Finding the Fourth Proportional to 26,583.40, 39,875.10 and 8,115.40

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Solution

The fourth proportional to 26,583.40, 39,875.10 and 8,115.40 is: 12,173.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,583.40 : 39,875.10 = 8,115.40 : x
  2. Step 2: Convert to fraction form
    26,583.40/39,875.10 = 8,115.40/x
  3. Step 3: Cross multiply
    26,583.40x = 39,875.10 × 8,115.40
  4. Step 4: Simplify right side
    26,583.40x = 323,602,386.54
  5. Step 5: Solve for x
    x = 323,602,386.54/26,583.40
  6. Step 6: Final answer
    x = 12,173.10

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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.