Home / 21,484.14-32,215.32-7,442.70

Finding the Fourth Proportional to 21,484.14, 32,215.32 and 7,442.70

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Solution

The fourth proportional to 21,484.14, 32,215.32 and 7,442.70 is: 11,160.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,484.14 : 32,215.32 = 7,442.70 : x
  2. Step 2: Convert to fraction form
    21,484.14/32,215.32 = 7,442.70/x
  3. Step 3: Cross multiply
    21,484.14x = 32,215.32 × 7,442.70
  4. Step 4: Simplify right side
    21,484.14x = 239,768,962.16
  5. Step 5: Solve for x
    x = 239,768,962.16/21,484.14
  6. Step 6: Final answer
    x = 11,160.28

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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.