Home / 40,657.89-61,021.86-28,186.67

Finding the Fourth Proportional to 40,657.89, 61,021.86 and 28,186.67

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Solution

The fourth proportional to 40,657.89, 61,021.86 and 28,186.67 is: 42,304.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,657.89 : 61,021.86 = 28,186.67 : x
  2. Step 2: Convert to fraction form
    40,657.89/61,021.86 = 28,186.67/x
  3. Step 3: Cross multiply
    40,657.89x = 61,021.86 × 28,186.67
  4. Step 4: Simplify right side
    40,657.89x = 1,720,003,030.61
  5. Step 5: Solve for x
    x = 1,720,003,030.61/40,657.89
  6. Step 6: Final answer
    x = 42,304.29

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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.