Home / 39,915.90-59,856.47-11,446.58

Finding the Fourth Proportional to 39,915.90, 59,856.47 and 11,446.58

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Solution

The fourth proportional to 39,915.90, 59,856.47 and 11,446.58 is: 17,164.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,915.90 : 59,856.47 = 11,446.58 : x
  2. Step 2: Convert to fraction form
    39,915.90/59,856.47 = 11,446.58/x
  3. Step 3: Cross multiply
    39,915.90x = 59,856.47 × 11,446.58
  4. Step 4: Simplify right side
    39,915.90x = 685,151,872.37
  5. Step 5: Solve for x
    x = 685,151,872.37/39,915.90
  6. Step 6: Final answer
    x = 17,164.89

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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.