Home / 38,669.07-53,363.30-21,902.07

Finding the Fourth Proportional to 38,669.07, 53,363.30 and 21,902.07

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Solution

The fourth proportional to 38,669.07, 53,363.30 and 21,902.07 is: 30,224.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,669.07 : 53,363.30 = 21,902.07 : x
  2. Step 2: Convert to fraction form
    38,669.07/53,363.30 = 21,902.07/x
  3. Step 3: Cross multiply
    38,669.07x = 53,363.30 × 21,902.07
  4. Step 4: Simplify right side
    38,669.07x = 1,168,766,622.52
  5. Step 5: Solve for x
    x = 1,168,766,622.52/38,669.07
  6. Step 6: Final answer
    x = 30,224.84

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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.