Home / 40,430.48-60,645.74-18,789.84

Finding the Fourth Proportional to 40,430.48, 60,645.74 and 18,789.84

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Solution

The fourth proportional to 40,430.48, 60,645.74 and 18,789.84 is: 28,184.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,430.48 : 60,645.74 = 18,789.84 : x
  2. Step 2: Convert to fraction form
    40,430.48/60,645.74 = 18,789.84/x
  3. Step 3: Cross multiply
    40,430.48x = 60,645.74 × 18,789.84
  4. Step 4: Simplify right side
    40,430.48x = 1,139,523,657.33
  5. Step 5: Solve for x
    x = 1,139,523,657.33/40,430.48
  6. Step 6: Final answer
    x = 28,184.77

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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.