Home / 26,201.79-39,279.47-18,787.59

Finding the Fourth Proportional to 26,201.79, 39,279.47 and 18,787.59

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Solution

The fourth proportional to 26,201.79, 39,279.47 and 18,787.59 is: 28,164.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,201.79 : 39,279.47 = 18,787.59 : x
  2. Step 2: Convert to fraction form
    26,201.79/39,279.47 = 18,787.59/x
  3. Step 3: Cross multiply
    26,201.79x = 39,279.47 × 18,787.59
  4. Step 4: Simplify right side
    26,201.79x = 737,966,483.84
  5. Step 5: Solve for x
    x = 737,966,483.84/26,201.79
  6. Step 6: Final answer
    x = 28,164.74

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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.