Home / 39,063.18-53,906.84-21,157.12

Finding the Fourth Proportional to 39,063.18, 53,906.84 and 21,157.12

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Solution

The fourth proportional to 39,063.18, 53,906.84 and 21,157.12 is: 29,196.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,063.18 : 53,906.84 = 21,157.12 : x
  2. Step 2: Convert to fraction form
    39,063.18/53,906.84 = 21,157.12/x
  3. Step 3: Cross multiply
    39,063.18x = 53,906.84 × 21,157.12
  4. Step 4: Simplify right side
    39,063.18x = 1,140,513,482.70
  5. Step 5: Solve for x
    x = 1,140,513,482.70/39,063.18
  6. Step 6: Final answer
    x = 29,196.64

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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.