Home / 21,142.02-31,695.21-10,599.06

Finding the Fourth Proportional to 21,142.02, 31,695.21 and 10,599.06

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Solution

The fourth proportional to 21,142.02, 31,695.21 and 10,599.06 is: 15,889.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,142.02 : 31,695.21 = 10,599.06 : x
  2. Step 2: Convert to fraction form
    21,142.02/31,695.21 = 10,599.06/x
  3. Step 3: Cross multiply
    21,142.02x = 31,695.21 × 10,599.06
  4. Step 4: Simplify right side
    21,142.02x = 335,939,432.50
  5. Step 5: Solve for x
    x = 335,939,432.50/21,142.02
  6. Step 6: Final answer
    x = 15,889.66

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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.