Home / 38,128.36-52,617.06-21,361

Finding the Fourth Proportional to 38,128.36, 52,617.06 and 21,361

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Solution

The fourth proportional to 38,128.36, 52,617.06 and 21,361 is: 29,478.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,128.36 : 52,617.06 = 21,361 : x
  2. Step 2: Convert to fraction form
    38,128.36/52,617.06 = 21,361/x
  3. Step 3: Cross multiply
    38,128.36x = 52,617.06 × 21,361
  4. Step 4: Simplify right side
    38,128.36x = 1,123,953,018.66
  5. Step 5: Solve for x
    x = 1,123,953,018.66/38,128.36
  6. Step 6: Final answer
    x = 29,478.14

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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.