Home / 15,404.04-21,175.56-15,306.84

Finding the Fourth Proportional to 15,404.04, 21,175.56 and 15,306.84

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Solution

The fourth proportional to 15,404.04, 21,175.56 and 15,306.84 is: 21,041.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,404.04 : 21,175.56 = 15,306.84 : x
  2. Step 2: Convert to fraction form
    15,404.04/21,175.56 = 15,306.84/x
  3. Step 3: Cross multiply
    15,404.04x = 21,175.56 × 15,306.84
  4. Step 4: Simplify right side
    15,404.04x = 324,130,908.83
  5. Step 5: Solve for x
    x = 324,130,908.83/15,404.04
  6. Step 6: Final answer
    x = 21,041.94

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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.