Home / 21,052.93-31,570.16-7,896.08

Finding the Fourth Proportional to 21,052.93, 31,570.16 and 7,896.08

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Solution

The fourth proportional to 21,052.93, 31,570.16 and 7,896.08 is: 11,840.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,052.93 : 31,570.16 = 7,896.08 : x
  2. Step 2: Convert to fraction form
    21,052.93/31,570.16 = 7,896.08/x
  3. Step 3: Cross multiply
    21,052.93x = 31,570.16 × 7,896.08
  4. Step 4: Simplify right side
    21,052.93x = 249,280,311.64
  5. Step 5: Solve for x
    x = 249,280,311.64/21,052.93
  6. Step 6: Final answer
    x = 11,840.65

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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.