Home / 28,127.88-38,816.42-15,552.62

Finding the Fourth Proportional to 28,127.88, 38,816.42 and 15,552.62

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Solution

The fourth proportional to 28,127.88, 38,816.42 and 15,552.62 is: 21,462.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,127.88 : 38,816.42 = 15,552.62 : x
  2. Step 2: Convert to fraction form
    28,127.88/38,816.42 = 15,552.62/x
  3. Step 3: Cross multiply
    28,127.88x = 38,816.42 × 15,552.62
  4. Step 4: Simplify right side
    28,127.88x = 603,697,030.02
  5. Step 5: Solve for x
    x = 603,697,030.02/28,127.88
  6. Step 6: Final answer
    x = 21,462.59

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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.