Home / 40,030.86-60,044.93-18,980.99

Finding the Fourth Proportional to 40,030.86, 60,044.93 and 18,980.99

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Solution

The fourth proportional to 40,030.86, 60,044.93 and 18,980.99 is: 28,470.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,030.86 : 60,044.93 = 18,980.99 : x
  2. Step 2: Convert to fraction form
    40,030.86/60,044.93 = 18,980.99/x
  3. Step 3: Cross multiply
    40,030.86x = 60,044.93 × 18,980.99
  4. Step 4: Simplify right side
    40,030.86x = 1,139,711,820.75
  5. Step 5: Solve for x
    x = 1,139,711,820.75/40,030.86
  6. Step 6: Final answer
    x = 28,470.83

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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.