Home / 22,721.02-31,356.03-12,650.09

Finding the Fourth Proportional to 22,721.02, 31,356.03 and 12,650.09

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Solution

The fourth proportional to 22,721.02, 31,356.03 and 12,650.09 is: 17,457.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,721.02 : 31,356.03 = 12,650.09 : x
  2. Step 2: Convert to fraction form
    22,721.02/31,356.03 = 12,650.09/x
  3. Step 3: Cross multiply
    22,721.02x = 31,356.03 × 12,650.09
  4. Step 4: Simplify right side
    22,721.02x = 396,656,538.29
  5. Step 5: Solve for x
    x = 396,656,538.29/22,721.02
  6. Step 6: Final answer
    x = 17,457.69

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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.