Home / 39,482.84-54,487.04-21,579

Finding the Fourth Proportional to 39,482.84, 54,487.04 and 21,579

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Solution

The fourth proportional to 39,482.84, 54,487.04 and 21,579 is: 29,779.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,482.84 : 54,487.04 = 21,579 : x
  2. Step 2: Convert to fraction form
    39,482.84/54,487.04 = 21,579/x
  3. Step 3: Cross multiply
    39,482.84x = 54,487.04 × 21,579
  4. Step 4: Simplify right side
    39,482.84x = 1,175,775,728.27
  5. Step 5: Solve for x
    x = 1,175,775,728.27/39,482.84
  6. Step 6: Final answer
    x = 29,779.41

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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.