Home / 28,989.60-43,484.40-9,268.80

Finding the Fourth Proportional to 28,989.60, 43,484.40 and 9,268.80

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Solution

The fourth proportional to 28,989.60, 43,484.40 and 9,268.80 is: 13,903.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,989.60 : 43,484.40 = 9,268.80 : x
  2. Step 2: Convert to fraction form
    28,989.60/43,484.40 = 9,268.80/x
  3. Step 3: Cross multiply
    28,989.60x = 43,484.40 × 9,268.80
  4. Step 4: Simplify right side
    28,989.60x = 403,048,206.72
  5. Step 5: Solve for x
    x = 403,048,206.72/28,989.60
  6. Step 6: Final answer
    x = 13,903.20

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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.