Home / 38,962.42-53,768.15-21,057.40

Finding the Fourth Proportional to 38,962.42, 53,768.15 and 21,057.40

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Solution

The fourth proportional to 38,962.42, 53,768.15 and 21,057.40 is: 29,059.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,962.42 : 53,768.15 = 21,057.40 : x
  2. Step 2: Convert to fraction form
    38,962.42/53,768.15 = 21,057.40/x
  3. Step 3: Cross multiply
    38,962.42x = 53,768.15 × 21,057.40
  4. Step 4: Simplify right side
    38,962.42x = 1,132,217,441.81
  5. Step 5: Solve for x
    x = 1,132,217,441.81/38,962.42
  6. Step 6: Final answer
    x = 29,059.22

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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.