Home / 38,888.78-53,666.43-22,121.78

Finding the Fourth Proportional to 38,888.78, 53,666.43 and 22,121.78

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Solution

The fourth proportional to 38,888.78, 53,666.43 and 22,121.78 is: 30,528.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,888.78 : 53,666.43 = 22,121.78 : x
  2. Step 2: Convert to fraction form
    38,888.78/53,666.43 = 22,121.78/x
  3. Step 3: Cross multiply
    38,888.78x = 53,666.43 × 22,121.78
  4. Step 4: Simplify right side
    38,888.78x = 1,187,196,957.85
  5. Step 5: Solve for x
    x = 1,187,196,957.85/38,888.78
  6. Step 6: Final answer
    x = 30,528.01

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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.