Home / 28,043.88-42,068.65-11,401.35

Finding the Fourth Proportional to 28,043.88, 42,068.65 and 11,401.35

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Solution

The fourth proportional to 28,043.88, 42,068.65 and 11,401.35 is: 17,103.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,043.88 : 42,068.65 = 11,401.35 : x
  2. Step 2: Convert to fraction form
    28,043.88/42,068.65 = 11,401.35/x
  3. Step 3: Cross multiply
    28,043.88x = 42,068.65 × 11,401.35
  4. Step 4: Simplify right side
    28,043.88x = 479,639,402.68
  5. Step 5: Solve for x
    x = 479,639,402.68/28,043.88
  6. Step 6: Final answer
    x = 17,103.18

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1.5x scale

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.