Home / 37,878.12-52,269.44-20,881.49

Finding the Fourth Proportional to 37,878.12, 52,269.44 and 20,881.49

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Solution

The fourth proportional to 37,878.12, 52,269.44 and 20,881.49 is: 28,815.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,878.12 : 52,269.44 = 20,881.49 : x
  2. Step 2: Convert to fraction form
    37,878.12/52,269.44 = 20,881.49/x
  3. Step 3: Cross multiply
    37,878.12x = 52,269.44 × 20,881.49
  4. Step 4: Simplify right side
    37,878.12x = 1,091,463,422.91
  5. Step 5: Solve for x
    x = 1,091,463,422.91/37,878.12
  6. Step 6: Final answer
    x = 28,815.14

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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.