Home / 38,683.24-53,382.78-21,916.24

Finding the Fourth Proportional to 38,683.24, 53,382.78 and 21,916.24

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Solution

The fourth proportional to 38,683.24, 53,382.78 and 21,916.24 is: 30,244.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,683.24 : 53,382.78 = 21,916.24 : x
  2. Step 2: Convert to fraction form
    38,683.24/53,382.78 = 21,916.24/x
  3. Step 3: Cross multiply
    38,683.24x = 53,382.78 × 21,916.24
  4. Step 4: Simplify right side
    38,683.24x = 1,169,949,818.35
  5. Step 5: Solve for x
    x = 1,169,949,818.35/38,683.24
  6. Step 6: Final answer
    x = 30,244.36

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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.