Home / 28,068.50-38,736.36-15,493.26

Finding the Fourth Proportional to 28,068.50, 38,736.36 and 15,493.26

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Solution

The fourth proportional to 28,068.50, 38,736.36 and 15,493.26 is: 21,381.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,068.50 : 38,736.36 = 15,493.26 : x
  2. Step 2: Convert to fraction form
    28,068.50/38,736.36 = 15,493.26/x
  3. Step 3: Cross multiply
    28,068.50x = 38,736.36 × 15,493.26
  4. Step 4: Simplify right side
    28,068.50x = 600,152,496.93
  5. Step 5: Solve for x
    x = 600,152,496.93/28,068.50
  6. Step 6: Final answer
    x = 21,381.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.