Home / 28,886.31-43,329.35-9,166.40

Finding the Fourth Proportional to 28,886.31, 43,329.35 and 9,166.40

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Solution

The fourth proportional to 28,886.31, 43,329.35 and 9,166.40 is: 13,749.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,886.31 : 43,329.35 = 9,166.40 : x
  2. Step 2: Convert to fraction form
    28,886.31/43,329.35 = 9,166.40/x
  3. Step 3: Cross multiply
    28,886.31x = 43,329.35 × 9,166.40
  4. Step 4: Simplify right side
    28,886.31x = 397,174,108.01
  5. Step 5: Solve for x
    x = 397,174,108.01/28,886.31
  6. Step 6: Final answer
    x = 13,749.56

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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.