Home / 38,403.52-52,997.28-21,636.16

Finding the Fourth Proportional to 38,403.52, 52,997.28 and 21,636.16

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Solution

The fourth proportional to 38,403.52, 52,997.28 and 21,636.16 is: 29,858.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,403.52 : 52,997.28 = 21,636.16 : x
  2. Step 2: Convert to fraction form
    38,403.52/52,997.28 = 21,636.16/x
  3. Step 3: Cross multiply
    38,403.52x = 52,997.28 × 21,636.16
  4. Step 4: Simplify right side
    38,403.52x = 1,146,657,629.64
  5. Step 5: Solve for x
    x = 1,146,657,629.64/38,403.52
  6. Step 6: Final answer
    x = 29,858.14

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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.