Home / 27,988.60-41,970.30-8,260.36

Finding the Fourth Proportional to 27,988.60, 41,970.30 and 8,260.36

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Solution

The fourth proportional to 27,988.60, 41,970.30 and 8,260.36 is: 12,386.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,988.60 : 41,970.30 = 8,260.36 : x
  2. Step 2: Convert to fraction form
    27,988.60/41,970.30 = 8,260.36/x
  3. Step 3: Cross multiply
    27,988.60x = 41,970.30 × 8,260.36
  4. Step 4: Simplify right side
    27,988.60x = 346,689,787.31
  5. Step 5: Solve for x
    x = 346,689,787.31/27,988.60
  6. Step 6: Final answer
    x = 12,386.82

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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.