Home / 28,113.84-38,793.96-15,535.44

Finding the Fourth Proportional to 28,113.84, 38,793.96 and 15,535.44

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Solution

The fourth proportional to 28,113.84, 38,793.96 and 15,535.44 is: 21,437.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,113.84 : 38,793.96 = 15,535.44 : x
  2. Step 2: Convert to fraction form
    28,113.84/38,793.96 = 15,535.44/x
  3. Step 3: Cross multiply
    28,113.84x = 38,793.96 × 15,535.44
  4. Step 4: Simplify right side
    28,113.84x = 602,681,237.94
  5. Step 5: Solve for x
    x = 602,681,237.94/28,113.84
  6. Step 6: Final answer
    x = 21,437.17

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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.