Home / 31,364.70-47,031.93-18,220.83

Finding the Fourth Proportional to 31,364.70, 47,031.93 and 18,220.83

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Solution

The fourth proportional to 31,364.70, 47,031.93 and 18,220.83 is: 27,322.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,364.70 : 47,031.93 = 18,220.83 : x
  2. Step 2: Convert to fraction form
    31,364.70/47,031.93 = 18,220.83/x
  3. Step 3: Cross multiply
    31,364.70x = 47,031.93 × 18,220.83
  4. Step 4: Simplify right side
    31,364.70x = 856,960,801.10
  5. Step 5: Solve for x
    x = 856,960,801.10/31,364.70
  6. Step 6: Final answer
    x = 27,322.46

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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.