Home / 53,988.98-80,984.19-18,929.66

Finding the Fourth Proportional to 53,988.98, 80,984.19 and 18,929.66

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Solution

The fourth proportional to 53,988.98, 80,984.19 and 18,929.66 is: 28,394.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,988.98 : 80,984.19 = 18,929.66 : x
  2. Step 2: Convert to fraction form
    53,988.98/80,984.19 = 18,929.66/x
  3. Step 3: Cross multiply
    53,988.98x = 80,984.19 × 18,929.66
  4. Step 4: Simplify right side
    53,988.98x = 1,533,003,182.08
  5. Step 5: Solve for x
    x = 1,533,003,182.08/53,988.98
  6. Step 6: Final answer
    x = 28,394.74

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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.