Home / 28,324.40-42,486.80-8,603.19

Finding the Fourth Proportional to 28,324.40, 42,486.80 and 8,603.19

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Solution

The fourth proportional to 28,324.40, 42,486.80 and 8,603.19 is: 12,904.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,324.40 : 42,486.80 = 8,603.19 : x
  2. Step 2: Convert to fraction form
    28,324.40/42,486.80 = 8,603.19/x
  3. Step 3: Cross multiply
    28,324.40x = 42,486.80 × 8,603.19
  4. Step 4: Simplify right side
    28,324.40x = 365,521,969.88
  5. Step 5: Solve for x
    x = 365,521,969.88/28,324.40
  6. Step 6: Final answer
    x = 12,904.85

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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.