Home / 38,393.34-52,986.69-21,400.35

Finding the Fourth Proportional to 38,393.34, 52,986.69 and 21,400.35

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Solution

The fourth proportional to 38,393.34, 52,986.69 and 21,400.35 is: 29,534.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,393.34 : 52,986.69 = 21,400.35 : x
  2. Step 2: Convert to fraction form
    38,393.34/52,986.69 = 21,400.35/x
  3. Step 3: Cross multiply
    38,393.34x = 52,986.69 × 21,400.35
  4. Step 4: Simplify right side
    38,393.34x = 1,133,933,711.34
  5. Step 5: Solve for x
    x = 1,133,933,711.34/38,393.34
  6. Step 6: Final answer
    x = 29,534.65

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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.