Home / 28,110.48-38,800.52-18,557.32

Finding the Fourth Proportional to 28,110.48, 38,800.52 and 18,557.32

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Solution

The fourth proportional to 28,110.48, 38,800.52 and 18,557.32 is: 25,614.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,110.48 : 38,800.52 = 18,557.32 : x
  2. Step 2: Convert to fraction form
    28,110.48/38,800.52 = 18,557.32/x
  3. Step 3: Cross multiply
    28,110.48x = 38,800.52 × 18,557.32
  4. Step 4: Simplify right side
    28,110.48x = 720,033,665.81
  5. Step 5: Solve for x
    x = 720,033,665.81/28,110.48
  6. Step 6: Final answer
    x = 25,614.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.