Home / 39,506.85-59,251.38-11,420.65

Finding the Fourth Proportional to 39,506.85, 59,251.38 and 11,420.65

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Solution

The fourth proportional to 39,506.85, 59,251.38 and 11,420.65 is: 17,128.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,506.85 : 59,251.38 = 11,420.65 : x
  2. Step 2: Convert to fraction form
    39,506.85/59,251.38 = 11,420.65/x
  3. Step 3: Cross multiply
    39,506.85x = 59,251.38 × 11,420.65
  4. Step 4: Simplify right side
    39,506.85x = 676,689,035.19
  5. Step 5: Solve for x
    x = 676,689,035.19/39,506.85
  6. Step 6: Final answer
    x = 17,128.40

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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.