Home / 38,384.08-52,969.38-21,389.53

Finding the Fourth Proportional to 38,384.08, 52,969.38 and 21,389.53

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Solution

The fourth proportional to 38,384.08, 52,969.38 and 21,389.53 is: 29,517.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,384.08 : 52,969.38 = 21,389.53 : x
  2. Step 2: Convert to fraction form
    38,384.08/52,969.38 = 21,389.53/x
  3. Step 3: Cross multiply
    38,384.08x = 52,969.38 × 21,389.53
  4. Step 4: Simplify right side
    38,384.08x = 1,132,990,142.59
  5. Step 5: Solve for x
    x = 1,132,990,142.59/38,384.08
  6. Step 6: Final answer
    x = 29,517.19

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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.