Home / 28,543.78-42,841.63-15,228.06

Finding the Fourth Proportional to 28,543.78, 42,841.63 and 15,228.06

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Solution

The fourth proportional to 28,543.78, 42,841.63 and 15,228.06 is: 22,855.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,543.78 : 42,841.63 = 15,228.06 : x
  2. Step 2: Convert to fraction form
    28,543.78/42,841.63 = 15,228.06/x
  3. Step 3: Cross multiply
    28,543.78x = 42,841.63 × 15,228.06
  4. Step 4: Simplify right side
    28,543.78x = 652,394,933.84
  5. Step 5: Solve for x
    x = 652,394,933.84/28,543.78
  6. Step 6: Final answer
    x = 22,855.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.