Home / 37,989.25-52,420.64-20,992.47

Finding the Fourth Proportional to 37,989.25, 52,420.64 and 20,992.47

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Solution

The fourth proportional to 37,989.25, 52,420.64 and 20,992.47 is: 28,967.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,989.25 : 52,420.64 = 20,992.47 : x
  2. Step 2: Convert to fraction form
    37,989.25/52,420.64 = 20,992.47/x
  3. Step 3: Cross multiply
    37,989.25x = 52,420.64 × 20,992.47
  4. Step 4: Simplify right side
    37,989.25x = 1,100,438,588.17
  5. Step 5: Solve for x
    x = 1,100,438,588.17/37,989.25
  6. Step 6: Final answer
    x = 28,967.10

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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.