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Finding the Fourth Proportional to 34,480.40, 51,746.20 and 13,718.80

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Solution

The fourth proportional to 34,480.40, 51,746.20 and 13,718.80 is: 20,588.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,480.40 : 51,746.20 = 13,718.80 : x
  2. Step 2: Convert to fraction form
    34,480.40/51,746.20 = 13,718.80/x
  3. Step 3: Cross multiply
    34,480.40x = 51,746.20 × 13,718.80
  4. Step 4: Simplify right side
    34,480.40x = 709,895,768.56
  5. Step 5: Solve for x
    x = 709,895,768.56/34,480.40
  6. Step 6: Final answer
    x = 20,588.39

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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.