Home / 38,931.84-58,406.40-18,144

Finding the Fourth Proportional to 38,931.84, 58,406.40 and 18,144

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Solution

The fourth proportional to 38,931.84, 58,406.40 and 18,144 is: 27,220.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,931.84 : 58,406.40 = 18,144 : x
  2. Step 2: Convert to fraction form
    38,931.84/58,406.40 = 18,144/x
  3. Step 3: Cross multiply
    38,931.84x = 58,406.40 × 18,144
  4. Step 4: Simplify right side
    38,931.84x = 1,059,725,721.60
  5. Step 5: Solve for x
    x = 1,059,725,721.60/38,931.84
  6. Step 6: Final answer
    x = 27,220.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.