Home / 28,253.21-42,328.13-13,232.75

Finding the Fourth Proportional to 28,253.21, 42,328.13 and 13,232.75

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Solution

The fourth proportional to 28,253.21, 42,328.13 and 13,232.75 is: 19,824.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,253.21 : 42,328.13 = 13,232.75 : x
  2. Step 2: Convert to fraction form
    28,253.21/42,328.13 = 13,232.75/x
  3. Step 3: Cross multiply
    28,253.21x = 42,328.13 × 13,232.75
  4. Step 4: Simplify right side
    28,253.21x = 560,117,284.45
  5. Step 5: Solve for x
    x = 560,117,284.45/28,253.21
  6. Step 6: Final answer
    x = 19,824.91

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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.