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Finding the Fourth Proportional to 35,603.98, 53,438.07 and 18,977.86

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Solution

The fourth proportional to 35,603.98, 53,438.07 and 18,977.86 is: 28,483.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,603.98 : 53,438.07 = 18,977.86 : x
  2. Step 2: Convert to fraction form
    35,603.98/53,438.07 = 18,977.86/x
  3. Step 3: Cross multiply
    35,603.98x = 53,438.07 × 18,977.86
  4. Step 4: Simplify right side
    35,603.98x = 1,014,140,211.13
  5. Step 5: Solve for x
    x = 1,014,140,211.13/35,603.98
  6. Step 6: Final answer
    x = 28,483.90

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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.