Home / 28,464.96-39,283.12-18,395.04

Finding the Fourth Proportional to 28,464.96, 39,283.12 and 18,395.04

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Solution

The fourth proportional to 28,464.96, 39,283.12 and 18,395.04 is: 25,386.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,464.96 : 39,283.12 = 18,395.04 : x
  2. Step 2: Convert to fraction form
    28,464.96/39,283.12 = 18,395.04/x
  3. Step 3: Cross multiply
    28,464.96x = 39,283.12 × 18,395.04
  4. Step 4: Simplify right side
    28,464.96x = 722,614,563.72
  5. Step 5: Solve for x
    x = 722,614,563.72/28,464.96
  6. Step 6: Final answer
    x = 25,386.11

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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.