Home / 38,152.14-52,647.85-21,155.40

Finding the Fourth Proportional to 38,152.14, 52,647.85 and 21,155.40

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Solution

The fourth proportional to 38,152.14, 52,647.85 and 21,155.40 is: 29,193.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,152.14 : 52,647.85 = 21,155.40 : x
  2. Step 2: Convert to fraction form
    38,152.14/52,647.85 = 21,155.40/x
  3. Step 3: Cross multiply
    38,152.14x = 52,647.85 × 21,155.40
  4. Step 4: Simplify right side
    38,152.14x = 1,113,786,325.89
  5. Step 5: Solve for x
    x = 1,113,786,325.89/38,152.14
  6. Step 6: Final answer
    x = 29,193.29

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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.