Home / 31,739.05-47,580.63-12,031.48

Finding the Fourth Proportional to 31,739.05, 47,580.63 and 12,031.48

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Solution

The fourth proportional to 31,739.05, 47,580.63 and 12,031.48 is: 18,036.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,739.05 : 47,580.63 = 12,031.48 : x
  2. Step 2: Convert to fraction form
    31,739.05/47,580.63 = 12,031.48/x
  3. Step 3: Cross multiply
    31,739.05x = 47,580.63 × 12,031.48
  4. Step 4: Simplify right side
    31,739.05x = 572,465,398.23
  5. Step 5: Solve for x
    x = 572,465,398.23/31,739.05
  6. Step 6: Final answer
    x = 18,036.63

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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.