Home / 38,319-52,880.22-21,552.36

Finding the Fourth Proportional to 38,319, 52,880.22 and 21,552.36

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Solution

The fourth proportional to 38,319, 52,880.22 and 21,552.36 is: 29,742.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,319 : 52,880.22 = 21,552.36 : x
  2. Step 2: Convert to fraction form
    38,319/52,880.22 = 21,552.36/x
  3. Step 3: Cross multiply
    38,319x = 52,880.22 × 21,552.36
  4. Step 4: Simplify right side
    38,319x = 1,139,693,538.32
  5. Step 5: Solve for x
    x = 1,139,693,538.32/38,319
  6. Step 6: Final answer
    x = 29,742.26

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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.