Home / 39,482.04-54,486.36-21,577.80

Finding the Fourth Proportional to 39,482.04, 54,486.36 and 21,577.80

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Solution

The fourth proportional to 39,482.04, 54,486.36 and 21,577.80 is: 29,777.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,482.04 : 54,486.36 = 21,577.80 : x
  2. Step 2: Convert to fraction form
    39,482.04/54,486.36 = 21,577.80/x
  3. Step 3: Cross multiply
    39,482.04x = 54,486.36 × 21,577.80
  4. Step 4: Simplify right side
    39,482.04x = 1,175,695,778.81
  5. Step 5: Solve for x
    x = 1,175,695,778.81/39,482.04
  6. Step 6: Final answer
    x = 29,777.99

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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.