Home / 21,301.10-31,951.35-9,614.30

Finding the Fourth Proportional to 21,301.10, 31,951.35 and 9,614.30

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Solution

The fourth proportional to 21,301.10, 31,951.35 and 9,614.30 is: 14,421.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,301.10 : 31,951.35 = 9,614.30 : x
  2. Step 2: Convert to fraction form
    21,301.10/31,951.35 = 9,614.30/x
  3. Step 3: Cross multiply
    21,301.10x = 31,951.35 × 9,614.30
  4. Step 4: Simplify right side
    21,301.10x = 307,189,864.31
  5. Step 5: Solve for x
    x = 307,189,864.31/21,301.10
  6. Step 6: Final answer
    x = 14,421.31

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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.