Home / 28,192.35-38,904.04-15,445.58

Finding the Fourth Proportional to 28,192.35, 38,904.04 and 15,445.58

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Solution

The fourth proportional to 28,192.35, 38,904.04 and 15,445.58 is: 21,314.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,192.35 : 38,904.04 = 15,445.58 : x
  2. Step 2: Convert to fraction form
    28,192.35/38,904.04 = 15,445.58/x
  3. Step 3: Cross multiply
    28,192.35x = 38,904.04 × 15,445.58
  4. Step 4: Simplify right side
    28,192.35x = 600,895,462.14
  5. Step 5: Solve for x
    x = 600,895,462.14/28,192.35
  6. Step 6: Final answer
    x = 21,314.13

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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.