Home / 21,159.08-31,741.50-7,309.16

Finding the Fourth Proportional to 21,159.08, 31,741.50 and 7,309.16

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Solution

The fourth proportional to 21,159.08, 31,741.50 and 7,309.16 is: 10,964.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,159.08 : 31,741.50 = 7,309.16 : x
  2. Step 2: Convert to fraction form
    21,159.08/31,741.50 = 7,309.16/x
  3. Step 3: Cross multiply
    21,159.08x = 31,741.50 × 7,309.16
  4. Step 4: Simplify right side
    21,159.08x = 232,003,702.14
  5. Step 5: Solve for x
    x = 232,003,702.14/21,159.08
  6. Step 6: Final answer
    x = 10,964.73

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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.