Home / 31,347.55-47,029.10-15,559.99

Finding the Fourth Proportional to 31,347.55, 47,029.10 and 15,559.99

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Solution

The fourth proportional to 31,347.55, 47,029.10 and 15,559.99 is: 23,343.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,347.55 : 47,029.10 = 15,559.99 : x
  2. Step 2: Convert to fraction form
    31,347.55/47,029.10 = 15,559.99/x
  3. Step 3: Cross multiply
    31,347.55x = 47,029.10 × 15,559.99
  4. Step 4: Simplify right side
    31,347.55x = 731,772,325.71
  5. Step 5: Solve for x
    x = 731,772,325.71/31,347.55
  6. Step 6: Final answer
    x = 23,343.84

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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.