Home / 37,782.18-52,138.60-20,554.09

Finding the Fourth Proportional to 37,782.18, 52,138.60 and 20,554.09

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Solution

The fourth proportional to 37,782.18, 52,138.60 and 20,554.09 is: 28,364.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,782.18 : 52,138.60 = 20,554.09 : x
  2. Step 2: Convert to fraction form
    37,782.18/52,138.60 = 20,554.09/x
  3. Step 3: Cross multiply
    37,782.18x = 52,138.60 × 20,554.09
  4. Step 4: Simplify right side
    37,782.18x = 1,071,661,295.14
  5. Step 5: Solve for x
    x = 1,071,661,295.14/37,782.18
  6. Step 6: Final answer
    x = 28,364.20

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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.