Home / 23,428.90-35,120.40-9,385.12

Finding the Fourth Proportional to 23,428.90, 35,120.40 and 9,385.12

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Solution

The fourth proportional to 23,428.90, 35,120.40 and 9,385.12 is: 14,068.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,428.90 : 35,120.40 = 9,385.12 : x
  2. Step 2: Convert to fraction form
    23,428.90/35,120.40 = 9,385.12/x
  3. Step 3: Cross multiply
    23,428.90x = 35,120.40 × 9,385.12
  4. Step 4: Simplify right side
    23,428.90x = 329,609,168.45
  5. Step 5: Solve for x
    x = 329,609,168.45/23,428.90
  6. Step 6: Final answer
    x = 14,068.49

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Double scale
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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.