Home / 28,700.01-43,009.92-13,905

Finding the Fourth Proportional to 28,700.01, 43,009.92 and 13,905

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Solution

The fourth proportional to 28,700.01, 43,009.92 and 13,905 is: 20,838.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,700.01 : 43,009.92 = 13,905 : x
  2. Step 2: Convert to fraction form
    28,700.01/43,009.92 = 13,905/x
  3. Step 3: Cross multiply
    28,700.01x = 43,009.92 × 13,905
  4. Step 4: Simplify right side
    28,700.01x = 598,052,937.60
  5. Step 5: Solve for x
    x = 598,052,937.60/28,700.01
  6. Step 6: Final answer
    x = 20,838.07

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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.