Home / 21,025.98-31,535.73-6,986.25

Finding the Fourth Proportional to 21,025.98, 31,535.73 and 6,986.25

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Solution

The fourth proportional to 21,025.98, 31,535.73 and 6,986.25 is: 10,478.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,025.98 : 31,535.73 = 6,986.25 : x
  2. Step 2: Convert to fraction form
    21,025.98/31,535.73 = 6,986.25/x
  3. Step 3: Cross multiply
    21,025.98x = 31,535.73 × 6,986.25
  4. Step 4: Simplify right side
    21,025.98x = 220,316,493.71
  5. Step 5: Solve for x
    x = 220,316,493.71/21,025.98
  6. Step 6: Final answer
    x = 10,478.30

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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.