Home / 18,835.08-28,250.22-4,985.16

Finding the Fourth Proportional to 18,835.08, 28,250.22 and 4,985.16

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Solution

The fourth proportional to 18,835.08, 28,250.22 and 4,985.16 is: 7,477.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,835.08 : 28,250.22 = 4,985.16 : x
  2. Step 2: Convert to fraction form
    18,835.08/28,250.22 = 4,985.16/x
  3. Step 3: Cross multiply
    18,835.08x = 28,250.22 × 4,985.16
  4. Step 4: Simplify right side
    18,835.08x = 140,831,866.74
  5. Step 5: Solve for x
    x = 140,831,866.74/18,835.08
  6. Step 6: Final answer
    x = 7,477.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.