Home / 19,915.48-27,483.96-10,963.20

Finding the Fourth Proportional to 19,915.48, 27,483.96 and 10,963.20

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Solution

The fourth proportional to 19,915.48, 27,483.96 and 10,963.20 is: 15,129.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,915.48 : 27,483.96 = 10,963.20 : x
  2. Step 2: Convert to fraction form
    19,915.48/27,483.96 = 10,963.20/x
  3. Step 3: Cross multiply
    19,915.48x = 27,483.96 × 10,963.20
  4. Step 4: Simplify right side
    19,915.48x = 301,312,150.27
  5. Step 5: Solve for x
    x = 301,312,150.27/19,915.48
  6. Step 6: Final answer
    x = 15,129.54

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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.