Home / 28,908.93-43,354.89-12,259.79

Finding the Fourth Proportional to 28,908.93, 43,354.89 and 12,259.79

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Solution

The fourth proportional to 28,908.93, 43,354.89 and 12,259.79 is: 18,386.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,908.93 : 43,354.89 = 12,259.79 : x
  2. Step 2: Convert to fraction form
    28,908.93/43,354.89 = 12,259.79/x
  3. Step 3: Cross multiply
    28,908.93x = 43,354.89 × 12,259.79
  4. Step 4: Simplify right side
    28,908.93x = 531,521,630.10
  5. Step 5: Solve for x
    x = 531,521,630.10/28,908.93
  6. Step 6: Final answer
    x = 18,386.07

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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.