Home / 15,370.14-21,072.55-15,089.93

Finding the Fourth Proportional to 15,370.14, 21,072.55 and 15,089.93

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Solution

The fourth proportional to 15,370.14, 21,072.55 and 15,089.93 is: 20,688.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,370.14 : 21,072.55 = 15,089.93 : x
  2. Step 2: Convert to fraction form
    15,370.14/21,072.55 = 15,089.93/x
  3. Step 3: Cross multiply
    15,370.14x = 21,072.55 × 15,089.93
  4. Step 4: Simplify right side
    15,370.14x = 317,983,304.42
  5. Step 5: Solve for x
    x = 317,983,304.42/15,370.14
  6. Step 6: Final answer
    x = 20,688.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.