Home / 28,207.13-42,303.74-11,571.89

Finding the Fourth Proportional to 28,207.13, 42,303.74 and 11,571.89

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Solution

The fourth proportional to 28,207.13, 42,303.74 and 11,571.89 is: 17,354.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,207.13 : 42,303.74 = 11,571.89 : x
  2. Step 2: Convert to fraction form
    28,207.13/42,303.74 = 11,571.89/x
  3. Step 3: Cross multiply
    28,207.13x = 42,303.74 × 11,571.89
  4. Step 4: Simplify right side
    28,207.13x = 489,534,225.87
  5. Step 5: Solve for x
    x = 489,534,225.87/28,207.13
  6. Step 6: Final answer
    x = 17,354.98

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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.