Home / 38,635.32-53,318.06-21,640.29

Finding the Fourth Proportional to 38,635.32, 53,318.06 and 21,640.29

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Solution

The fourth proportional to 38,635.32, 53,318.06 and 21,640.29 is: 29,864.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,635.32 : 53,318.06 = 21,640.29 : x
  2. Step 2: Convert to fraction form
    38,635.32/53,318.06 = 21,640.29/x
  3. Step 3: Cross multiply
    38,635.32x = 53,318.06 × 21,640.29
  4. Step 4: Simplify right side
    38,635.32x = 1,153,818,172.44
  5. Step 5: Solve for x
    x = 1,153,818,172.44/38,635.32
  6. Step 6: Final answer
    x = 29,864.34

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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.