Home / 22,632.16-31,238.32-12,699.36

Finding the Fourth Proportional to 22,632.16, 31,238.32 and 12,699.36

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Solution

The fourth proportional to 22,632.16, 31,238.32 and 12,699.36 is: 17,528.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,632.16 : 31,238.32 = 12,699.36 : x
  2. Step 2: Convert to fraction form
    22,632.16/31,238.32 = 12,699.36/x
  3. Step 3: Cross multiply
    22,632.16x = 31,238.32 × 12,699.36
  4. Step 4: Simplify right side
    22,632.16x = 396,706,671.48
  5. Step 5: Solve for x
    x = 396,706,671.48/22,632.16
  6. Step 6: Final answer
    x = 17,528.45

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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.