Home / 28,875.96-43,315.47-9,156.06

Finding the Fourth Proportional to 28,875.96, 43,315.47 and 9,156.06

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Solution

The fourth proportional to 28,875.96, 43,315.47 and 9,156.06 is: 13,734.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,875.96 : 43,315.47 = 9,156.06 : x
  2. Step 2: Convert to fraction form
    28,875.96/43,315.47 = 9,156.06/x
  3. Step 3: Cross multiply
    28,875.96x = 43,315.47 × 9,156.06
  4. Step 4: Simplify right side
    28,875.96x = 396,599,042.25
  5. Step 5: Solve for x
    x = 396,599,042.25/28,875.96
  6. Step 6: Final answer
    x = 13,734.58

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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.