Home / 39,809.16-59,711.58-12,105

Finding the Fourth Proportional to 39,809.16, 59,711.58 and 12,105

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Solution

The fourth proportional to 39,809.16, 59,711.58 and 12,105 is: 18,156.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,809.16 : 59,711.58 = 12,105 : x
  2. Step 2: Convert to fraction form
    39,809.16/59,711.58 = 12,105/x
  3. Step 3: Cross multiply
    39,809.16x = 59,711.58 × 12,105
  4. Step 4: Simplify right side
    39,809.16x = 722,808,675.90
  5. Step 5: Solve for x
    x = 722,808,675.90/39,809.16
  6. Step 6: Final answer
    x = 18,156.84

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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.