Home / 21,384.16-32,081.51-7,344.40

Finding the Fourth Proportional to 21,384.16, 32,081.51 and 7,344.40

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Solution

The fourth proportional to 21,384.16, 32,081.51 and 7,344.40 is: 11,018.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,384.16 : 32,081.51 = 7,344.40 : x
  2. Step 2: Convert to fraction form
    21,384.16/32,081.51 = 7,344.40/x
  3. Step 3: Cross multiply
    21,384.16x = 32,081.51 × 7,344.40
  4. Step 4: Simplify right side
    21,384.16x = 235,619,244.91
  5. Step 5: Solve for x
    x = 235,619,244.91/21,384.16
  6. Step 6: Final answer
    x = 11,018.40

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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.