Home / 22,721.64-31,356.09-13,295.67

Finding the Fourth Proportional to 22,721.64, 31,356.09 and 13,295.67

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Solution

The fourth proportional to 22,721.64, 31,356.09 and 13,295.67 is: 18,348.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,721.64 : 31,356.09 = 13,295.67 : x
  2. Step 2: Convert to fraction form
    22,721.64/31,356.09 = 13,295.67/x
  3. Step 3: Cross multiply
    22,721.64x = 31,356.09 × 13,295.67
  4. Step 4: Simplify right side
    22,721.64x = 416,900,225.13
  5. Step 5: Solve for x
    x = 416,900,225.13/22,721.64
  6. Step 6: Final answer
    x = 18,348.16

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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.