Home / 28,765.28-43,145.08-9,043.31

Finding the Fourth Proportional to 28,765.28, 43,145.08 and 9,043.31

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Solution

The fourth proportional to 28,765.28, 43,145.08 and 9,043.31 is: 13,564.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,765.28 : 43,145.08 = 9,043.31 : x
  2. Step 2: Convert to fraction form
    28,765.28/43,145.08 = 9,043.31/x
  3. Step 3: Cross multiply
    28,765.28x = 43,145.08 × 9,043.31
  4. Step 4: Simplify right side
    28,765.28x = 390,174,333.41
  5. Step 5: Solve for x
    x = 390,174,333.41/28,765.28
  6. Step 6: Final answer
    x = 13,564.07

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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.