Home / 22,721.93-31,355.65-12,650.37

Finding the Fourth Proportional to 22,721.93, 31,355.65 and 12,650.37

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Solution

The fourth proportional to 22,721.93, 31,355.65 and 12,650.37 is: 17,457.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,721.93 : 31,355.65 = 12,650.37 : x
  2. Step 2: Convert to fraction form
    22,721.93/31,355.65 = 12,650.37/x
  3. Step 3: Cross multiply
    22,721.93x = 31,355.65 × 12,650.37
  4. Step 4: Simplify right side
    22,721.93x = 396,660,510.84
  5. Step 5: Solve for x
    x = 396,660,510.84/22,721.93
  6. Step 6: Final answer
    x = 17,457.17

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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.