Home / 38,384.64-52,969.98-21,388.80

Finding the Fourth Proportional to 38,384.64, 52,969.98 and 21,388.80

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Solution

The fourth proportional to 38,384.64, 52,969.98 and 21,388.80 is: 29,516.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,384.64 : 52,969.98 = 21,388.80 : x
  2. Step 2: Convert to fraction form
    38,384.64/52,969.98 = 21,388.80/x
  3. Step 3: Cross multiply
    38,384.64x = 52,969.98 × 21,388.80
  4. Step 4: Simplify right side
    38,384.64x = 1,132,964,308.22
  5. Step 5: Solve for x
    x = 1,132,964,308.22/38,384.64
  6. Step 6: Final answer
    x = 29,516.09

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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.