Home / 28,303.11-42,454.60-7,526.61

Finding the Fourth Proportional to 28,303.11, 42,454.60 and 7,526.61

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Solution

The fourth proportional to 28,303.11, 42,454.60 and 7,526.61 is: 11,289.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,303.11 : 42,454.60 = 7,526.61 : x
  2. Step 2: Convert to fraction form
    28,303.11/42,454.60 = 7,526.61/x
  3. Step 3: Cross multiply
    28,303.11x = 42,454.60 × 7,526.61
  4. Step 4: Simplify right side
    28,303.11x = 319,539,216.91
  5. Step 5: Solve for x
    x = 319,539,216.91/28,303.11
  6. Step 6: Final answer
    x = 11,289.90

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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.