Home / 21,631.06-32,446.53-5,215.06

Finding the Fourth Proportional to 21,631.06, 32,446.53 and 5,215.06

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Solution

The fourth proportional to 21,631.06, 32,446.53 and 5,215.06 is: 7,822.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,631.06 : 32,446.53 = 5,215.06 : x
  2. Step 2: Convert to fraction form
    21,631.06/32,446.53 = 5,215.06/x
  3. Step 3: Cross multiply
    21,631.06x = 32,446.53 × 5,215.06
  4. Step 4: Simplify right side
    21,631.06x = 169,210,600.74
  5. Step 5: Solve for x
    x = 169,210,600.74/21,631.06
  6. Step 6: Final answer
    x = 7,822.58

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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.