Home / 21,041.60-31,567.34-6,250.64

Finding the Fourth Proportional to 21,041.60, 31,567.34 and 6,250.64

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Solution

The fourth proportional to 21,041.60, 31,567.34 and 6,250.64 is: 9,377.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,041.60 : 31,567.34 = 6,250.64 : x
  2. Step 2: Convert to fraction form
    21,041.60/31,567.34 = 6,250.64/x
  3. Step 3: Cross multiply
    21,041.60x = 31,567.34 × 6,250.64
  4. Step 4: Simplify right side
    21,041.60x = 197,316,078.10
  5. Step 5: Solve for x
    x = 197,316,078.10/21,041.60
  6. Step 6: Final answer
    x = 9,377.43

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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.