Home / 28,939.93-43,426.53-15,612.90

Finding the Fourth Proportional to 28,939.93, 43,426.53 and 15,612.90

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Solution

The fourth proportional to 28,939.93, 43,426.53 and 15,612.90 is: 23,428.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,939.93 : 43,426.53 = 15,612.90 : x
  2. Step 2: Convert to fraction form
    28,939.93/43,426.53 = 15,612.90/x
  3. Step 3: Cross multiply
    28,939.93x = 43,426.53 × 15,612.90
  4. Step 4: Simplify right side
    28,939.93x = 678,014,151.66
  5. Step 5: Solve for x
    x = 678,014,151.66/28,939.93
  6. Step 6: Final answer
    x = 23,428.32

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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.