Home / 21,210.02-31,812.96-10,675.85

Finding the Fourth Proportional to 21,210.02, 31,812.96 and 10,675.85

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Solution

The fourth proportional to 21,210.02, 31,812.96 and 10,675.85 is: 16,012.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,210.02 : 31,812.96 = 10,675.85 : x
  2. Step 2: Convert to fraction form
    21,210.02/31,812.96 = 10,675.85/x
  3. Step 3: Cross multiply
    21,210.02x = 31,812.96 × 10,675.85
  4. Step 4: Simplify right side
    21,210.02x = 339,630,229.95
  5. Step 5: Solve for x
    x = 339,630,229.95/21,210.02
  6. Step 6: Final answer
    x = 16,012.73

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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.