Home / 38,860.16-53,625.85-21,865.34

Finding the Fourth Proportional to 38,860.16, 53,625.85 and 21,865.34

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Solution

The fourth proportional to 38,860.16, 53,625.85 and 21,865.34 is: 30,173.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,860.16 : 53,625.85 = 21,865.34 : x
  2. Step 2: Convert to fraction form
    38,860.16/53,625.85 = 21,865.34/x
  3. Step 3: Cross multiply
    38,860.16x = 53,625.85 × 21,865.34
  4. Step 4: Simplify right side
    38,860.16x = 1,172,547,522.44
  5. Step 5: Solve for x
    x = 1,172,547,522.44/38,860.16
  6. Step 6: Final answer
    x = 30,173.52

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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.