Home / 53,989.74-80,984.46-18,929.40

Finding the Fourth Proportional to 53,989.74, 80,984.46 and 18,929.40

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Solution

The fourth proportional to 53,989.74, 80,984.46 and 18,929.40 is: 28,394.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,989.74 : 80,984.46 = 18,929.40 : x
  2. Step 2: Convert to fraction form
    53,989.74/80,984.46 = 18,929.40/x
  3. Step 3: Cross multiply
    53,989.74x = 80,984.46 × 18,929.40
  4. Step 4: Simplify right side
    53,989.74x = 1,532,986,897.94
  5. Step 5: Solve for x
    x = 1,532,986,897.94/53,989.74
  6. Step 6: Final answer
    x = 28,394.04

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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.