Home / 37,985.18-52,408.86-21,851.64

Finding the Fourth Proportional to 37,985.18, 52,408.86 and 21,851.64

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Solution

The fourth proportional to 37,985.18, 52,408.86 and 21,851.64 is: 30,149.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,985.18 : 52,408.86 = 21,851.64 : x
  2. Step 2: Convert to fraction form
    37,985.18/52,408.86 = 21,851.64/x
  3. Step 3: Cross multiply
    37,985.18x = 52,408.86 × 21,851.64
  4. Step 4: Simplify right side
    37,985.18x = 1,145,219,541.53
  5. Step 5: Solve for x
    x = 1,145,219,541.53/37,985.18
  6. Step 6: Final answer
    x = 30,149.12

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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.