Home / 28,019.04-38,666.24-15,444

Finding the Fourth Proportional to 28,019.04, 38,666.24 and 15,444

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Solution

The fourth proportional to 28,019.04, 38,666.24 and 15,444 is: 21,312.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,019.04 : 38,666.24 = 15,444 : x
  2. Step 2: Convert to fraction form
    28,019.04/38,666.24 = 15,444/x
  3. Step 3: Cross multiply
    28,019.04x = 38,666.24 × 15,444
  4. Step 4: Simplify right side
    28,019.04x = 597,161,410.56
  5. Step 5: Solve for x
    x = 597,161,410.56/28,019.04
  6. Step 6: Final answer
    x = 21,312.70

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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.