Home / 39,772.85-59,670.41-13,479.57

Finding the Fourth Proportional to 39,772.85, 59,670.41 and 13,479.57

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Solution

The fourth proportional to 39,772.85, 59,670.41 and 13,479.57 is: 20,223.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,772.85 : 59,670.41 = 13,479.57 : x
  2. Step 2: Convert to fraction form
    39,772.85/59,670.41 = 13,479.57/x
  3. Step 3: Cross multiply
    39,772.85x = 59,670.41 × 13,479.57
  4. Step 4: Simplify right side
    39,772.85x = 804,331,401.13
  5. Step 5: Solve for x
    x = 804,331,401.13/39,772.85
  6. Step 6: Final answer
    x = 20,223.13

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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.