Home / 38,320-52,881.08-21,553.04

Finding the Fourth Proportional to 38,320, 52,881.08 and 21,553.04

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Solution

The fourth proportional to 38,320, 52,881.08 and 21,553.04 is: 29,742.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,320 : 52,881.08 = 21,553.04 : x
  2. Step 2: Convert to fraction form
    38,320/52,881.08 = 21,553.04/x
  3. Step 3: Cross multiply
    38,320x = 52,881.08 × 21,553.04
  4. Step 4: Simplify right side
    38,320x = 1,139,748,032.48
  5. Step 5: Solve for x
    x = 1,139,748,032.48/38,320
  6. Step 6: Final answer
    x = 29,742.90

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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.