Home / 31,347.02-47,028.63-11,631.20

Finding the Fourth Proportional to 31,347.02, 47,028.63 and 11,631.20

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Solution

The fourth proportional to 31,347.02, 47,028.63 and 11,631.20 is: 17,449.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,347.02 : 47,028.63 = 11,631.20 : x
  2. Step 2: Convert to fraction form
    31,347.02/47,028.63 = 11,631.20/x
  3. Step 3: Cross multiply
    31,347.02x = 47,028.63 × 11,631.20
  4. Step 4: Simplify right side
    31,347.02x = 546,999,401.26
  5. Step 5: Solve for x
    x = 546,999,401.26/31,347.02
  6. Step 6: Final answer
    x = 17,449.81

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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.