Home / 39,482.05-54,485.10-21,577.05

Finding the Fourth Proportional to 39,482.05, 54,485.10 and 21,577.05

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Solution

The fourth proportional to 39,482.05, 54,485.10 and 21,577.05 is: 29,776.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,482.05 : 54,485.10 = 21,577.05 : x
  2. Step 2: Convert to fraction form
    39,482.05/54,485.10 = 21,577.05/x
  3. Step 3: Cross multiply
    39,482.05x = 54,485.10 × 21,577.05
  4. Step 4: Simplify right side
    39,482.05x = 1,175,627,929.12
  5. Step 5: Solve for x
    x = 1,175,627,929.12/39,482.05
  6. Step 6: Final answer
    x = 29,776.27

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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.