Home / 28,343.05-42,496.34-13,551.64

Finding the Fourth Proportional to 28,343.05, 42,496.34 and 13,551.64

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Solution

The fourth proportional to 28,343.05, 42,496.34 and 13,551.64 is: 20,318.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,343.05 : 42,496.34 = 13,551.64 : x
  2. Step 2: Convert to fraction form
    28,343.05/42,496.34 = 13,551.64/x
  3. Step 3: Cross multiply
    28,343.05x = 42,496.34 × 13,551.64
  4. Step 4: Simplify right side
    28,343.05x = 575,895,101.00
  5. Step 5: Solve for x
    x = 575,895,101.00/28,343.05
  6. Step 6: Final answer
    x = 20,318.74

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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.