Home / 28,325.10-42,487.77-8,603.82

Finding the Fourth Proportional to 28,325.10, 42,487.77 and 8,603.82

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Solution

The fourth proportional to 28,325.10, 42,487.77 and 8,603.82 is: 12,905.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,325.10 : 42,487.77 = 8,603.82 : x
  2. Step 2: Convert to fraction form
    28,325.10/42,487.77 = 8,603.82/x
  3. Step 3: Cross multiply
    28,325.10x = 42,487.77 × 8,603.82
  4. Step 4: Simplify right side
    28,325.10x = 365,557,125.28
  5. Step 5: Solve for x
    x = 365,557,125.28/28,325.10
  6. Step 6: Final answer
    x = 12,905.77

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1.5x scale

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.