Home / 38,823.12-53,578.80-21,829.32

Finding the Fourth Proportional to 38,823.12, 53,578.80 and 21,829.32

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Solution

The fourth proportional to 38,823.12, 53,578.80 and 21,829.32 is: 30,126.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,823.12 : 53,578.80 = 21,829.32 : x
  2. Step 2: Convert to fraction form
    38,823.12/53,578.80 = 21,829.32/x
  3. Step 3: Cross multiply
    38,823.12x = 53,578.80 × 21,829.32
  4. Step 4: Simplify right side
    38,823.12x = 1,169,588,770.42
  5. Step 5: Solve for x
    x = 1,169,588,770.42/38,823.12
  6. Step 6: Final answer
    x = 30,126.09

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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.