Home / 38,923.34-53,703.10-21,921.64

Finding the Fourth Proportional to 38,923.34, 53,703.10 and 21,921.64

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Solution

The fourth proportional to 38,923.34, 53,703.10 and 21,921.64 is: 30,245.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,923.34 : 53,703.10 = 21,921.64 : x
  2. Step 2: Convert to fraction form
    38,923.34/53,703.10 = 21,921.64/x
  3. Step 3: Cross multiply
    38,923.34x = 53,703.10 × 21,921.64
  4. Step 4: Simplify right side
    38,923.34x = 1,177,260,031.51
  5. Step 5: Solve for x
    x = 1,177,260,031.51/38,923.34
  6. Step 6: Final answer
    x = 30,245.60

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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.