Home / 15,255.02-21,044.46-10,220.36

Finding the Fourth Proportional to 15,255.02, 21,044.46 and 10,220.36

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Solution

The fourth proportional to 15,255.02, 21,044.46 and 10,220.36 is: 14,099.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,255.02 : 21,044.46 = 10,220.36 : x
  2. Step 2: Convert to fraction form
    15,255.02/21,044.46 = 10,220.36/x
  3. Step 3: Cross multiply
    15,255.02x = 21,044.46 × 10,220.36
  4. Step 4: Simplify right side
    15,255.02x = 215,081,957.21
  5. Step 5: Solve for x
    x = 215,081,957.21/15,255.02
  6. Step 6: Final answer
    x = 14,099.09

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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.