Home / 28,862.80-43,273.08-9,130.32

Finding the Fourth Proportional to 28,862.80, 43,273.08 and 9,130.32

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Solution

The fourth proportional to 28,862.80, 43,273.08 and 9,130.32 is: 13,688.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,862.80 : 43,273.08 = 9,130.32 : x
  2. Step 2: Convert to fraction form
    28,862.80/43,273.08 = 9,130.32/x
  3. Step 3: Cross multiply
    28,862.80x = 43,273.08 × 9,130.32
  4. Step 4: Simplify right side
    28,862.80x = 395,097,067.79
  5. Step 5: Solve for x
    x = 395,097,067.79/28,862.80
  6. Step 6: Final answer
    x = 13,688.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.