Home / 28,335.48-42,503.30-13,541.03

Finding the Fourth Proportional to 28,335.48, 42,503.30 and 13,541.03

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Solution

The fourth proportional to 28,335.48, 42,503.30 and 13,541.03 is: 20,311.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,335.48 : 42,503.30 = 13,541.03 : x
  2. Step 2: Convert to fraction form
    28,335.48/42,503.30 = 13,541.03/x
  3. Step 3: Cross multiply
    28,335.48x = 42,503.30 × 13,541.03
  4. Step 4: Simplify right side
    28,335.48x = 575,538,498.95
  5. Step 5: Solve for x
    x = 575,538,498.95/28,335.48
  6. Step 6: Final answer
    x = 20,311.58

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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.