Home / 21,237.40-31,860.13-7,006.74

Finding the Fourth Proportional to 21,237.40, 31,860.13 and 7,006.74

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Solution

The fourth proportional to 21,237.40, 31,860.13 and 7,006.74 is: 10,511.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,237.40 : 31,860.13 = 7,006.74 : x
  2. Step 2: Convert to fraction form
    21,237.40/31,860.13 = 7,006.74/x
  3. Step 3: Cross multiply
    21,237.40x = 31,860.13 × 7,006.74
  4. Step 4: Simplify right side
    21,237.40x = 223,235,647.28
  5. Step 5: Solve for x
    x = 223,235,647.28/21,237.40
  6. Step 6: Final answer
    x = 10,511.44

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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.