Home / 28,095.08-38,770.66-15,519.72

Finding the Fourth Proportional to 28,095.08, 38,770.66 and 15,519.72

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Solution

The fourth proportional to 28,095.08, 38,770.66 and 15,519.72 is: 21,416.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,095.08 : 38,770.66 = 15,519.72 : x
  2. Step 2: Convert to fraction form
    28,095.08/38,770.66 = 15,519.72/x
  3. Step 3: Cross multiply
    28,095.08x = 38,770.66 × 15,519.72
  4. Step 4: Simplify right side
    28,095.08x = 601,709,787.42
  5. Step 5: Solve for x
    x = 601,709,787.42/28,095.08
  6. Step 6: Final answer
    x = 21,416.91

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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.