Home / 20,675.52-30,878.55-16,521.84

Finding the Fourth Proportional to 20,675.52, 30,878.55 and 16,521.84

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Solution

The fourth proportional to 20,675.52, 30,878.55 and 16,521.84 is: 24,675.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,675.52 : 30,878.55 = 16,521.84 : x
  2. Step 2: Convert to fraction form
    20,675.52/30,878.55 = 16,521.84/x
  3. Step 3: Cross multiply
    20,675.52x = 30,878.55 × 16,521.84
  4. Step 4: Simplify right side
    20,675.52x = 510,170,462.53
  5. Step 5: Solve for x
    x = 510,170,462.53/20,675.52
  6. Step 6: Final answer
    x = 24,675.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.