Home / 38,363.28-57,518.90-13,389.68

Finding the Fourth Proportional to 38,363.28, 57,518.90 and 13,389.68

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Solution

The fourth proportional to 38,363.28, 57,518.90 and 13,389.68 is: 20,075.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,363.28 : 57,518.90 = 13,389.68 : x
  2. Step 2: Convert to fraction form
    38,363.28/57,518.90 = 13,389.68/x
  3. Step 3: Cross multiply
    38,363.28x = 57,518.90 × 13,389.68
  4. Step 4: Simplify right side
    38,363.28x = 770,159,611.41
  5. Step 5: Solve for x
    x = 770,159,611.41/38,363.28
  6. Step 6: Final answer
    x = 20,075.44

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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.