Home / 21,351.64-32,031.78-7,501.72

Finding the Fourth Proportional to 21,351.64, 32,031.78 and 7,501.72

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Solution

The fourth proportional to 21,351.64, 32,031.78 and 7,501.72 is: 11,254.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,351.64 : 32,031.78 = 7,501.72 : x
  2. Step 2: Convert to fraction form
    21,351.64/32,031.78 = 7,501.72/x
  3. Step 3: Cross multiply
    21,351.64x = 32,031.78 × 7,501.72
  4. Step 4: Simplify right side
    21,351.64x = 240,293,444.66
  5. Step 5: Solve for x
    x = 240,293,444.66/21,351.64
  6. Step 6: Final answer
    x = 11,254.10

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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.