Home / 21,028.46-31,542.80-6,237.50

Finding the Fourth Proportional to 21,028.46, 31,542.80 and 6,237.50

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Solution

The fourth proportional to 21,028.46, 31,542.80 and 6,237.50 is: 9,356.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,028.46 : 31,542.80 = 6,237.50 : x
  2. Step 2: Convert to fraction form
    21,028.46/31,542.80 = 6,237.50/x
  3. Step 3: Cross multiply
    21,028.46x = 31,542.80 × 6,237.50
  4. Step 4: Simplify right side
    21,028.46x = 196,748,026.10
  5. Step 5: Solve for x
    x = 196,748,026.10/21,028.46
  6. Step 6: Final answer
    x = 9,356.28

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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.