Home / 38,385.37-52,970.43-21,388.74

Finding the Fourth Proportional to 38,385.37, 52,970.43 and 21,388.74

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Solution

The fourth proportional to 38,385.37, 52,970.43 and 21,388.74 is: 29,515.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,385.37 : 52,970.43 = 21,388.74 : x
  2. Step 2: Convert to fraction form
    38,385.37/52,970.43 = 21,388.74/x
  3. Step 3: Cross multiply
    38,385.37x = 52,970.43 × 21,388.74
  4. Step 4: Simplify right side
    38,385.37x = 1,132,970,754.96
  5. Step 5: Solve for x
    x = 1,132,970,754.96/38,385.37
  6. Step 6: Final answer
    x = 29,515.69

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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.