Home / 38,389.40-52,976.67-21,622.40

Finding the Fourth Proportional to 38,389.40, 52,976.67 and 21,622.40

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Solution

The fourth proportional to 38,389.40, 52,976.67 and 21,622.40 is: 29,838.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,389.40 : 52,976.67 = 21,622.40 : x
  2. Step 2: Convert to fraction form
    38,389.40/52,976.67 = 21,622.40/x
  3. Step 3: Cross multiply
    38,389.40x = 52,976.67 × 21,622.40
  4. Step 4: Simplify right side
    38,389.40x = 1,145,482,749.41
  5. Step 5: Solve for x
    x = 1,145,482,749.41/38,389.40
  6. Step 6: Final answer
    x = 29,838.52

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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.