Home / 28,224.96-38,950.90-15,479.30

Finding the Fourth Proportional to 28,224.96, 38,950.90 and 15,479.30

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Solution

The fourth proportional to 28,224.96, 38,950.90 and 15,479.30 is: 21,361.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,224.96 : 38,950.90 = 15,479.30 : x
  2. Step 2: Convert to fraction form
    28,224.96/38,950.90 = 15,479.30/x
  3. Step 3: Cross multiply
    28,224.96x = 38,950.90 × 15,479.30
  4. Step 4: Simplify right side
    28,224.96x = 602,932,666.37
  5. Step 5: Solve for x
    x = 602,932,666.37/28,224.96
  6. Step 6: Final answer
    x = 21,361.68

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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.