Home / 14,031.64-21,047.40-3,643.39

Finding the Fourth Proportional to 14,031.64, 21,047.40 and 3,643.39

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Solution

The fourth proportional to 14,031.64, 21,047.40 and 3,643.39 is: 5,465.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,031.64 : 21,047.40 = 3,643.39 : x
  2. Step 2: Convert to fraction form
    14,031.64/21,047.40 = 3,643.39/x
  3. Step 3: Cross multiply
    14,031.64x = 21,047.40 × 3,643.39
  4. Step 4: Simplify right side
    14,031.64x = 76,683,781.45
  5. Step 5: Solve for x
    x = 76,683,781.45/14,031.64
  6. Step 6: Final answer
    x = 5,465.06

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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.