Home / 38,148.76-52,644.75-21,153.04

Finding the Fourth Proportional to 38,148.76, 52,644.75 and 21,153.04

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Solution

The fourth proportional to 38,148.76, 52,644.75 and 21,153.04 is: 29,190.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,148.76 : 52,644.75 = 21,153.04 : x
  2. Step 2: Convert to fraction form
    38,148.76/52,644.75 = 21,153.04/x
  3. Step 3: Cross multiply
    38,148.76x = 52,644.75 × 21,153.04
  4. Step 4: Simplify right side
    38,148.76x = 1,113,596,291.60
  5. Step 5: Solve for x
    x = 1,113,596,291.60/38,148.76
  6. Step 6: Final answer
    x = 29,190.89

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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.