Home / 38,734.45-53,440.16-21,736.35

Finding the Fourth Proportional to 38,734.45, 53,440.16 and 21,736.35

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Solution

The fourth proportional to 38,734.45, 53,440.16 and 21,736.35 is: 29,988.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,734.45 : 53,440.16 = 21,736.35 : x
  2. Step 2: Convert to fraction form
    38,734.45/53,440.16 = 21,736.35/x
  3. Step 3: Cross multiply
    38,734.45x = 53,440.16 × 21,736.35
  4. Step 4: Simplify right side
    38,734.45x = 1,161,593,913.13
  5. Step 5: Solve for x
    x = 1,161,593,913.13/38,734.45
  6. Step 6: Final answer
    x = 29,988.65

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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.