Home / 15,031.64-22,520.71-12,817.91

Finding the Fourth Proportional to 15,031.64, 22,520.71 and 12,817.91

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Solution

The fourth proportional to 15,031.64, 22,520.71 and 12,817.91 is: 19,204.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,031.64 : 22,520.71 = 12,817.91 : x
  2. Step 2: Convert to fraction form
    15,031.64/22,520.71 = 12,817.91/x
  3. Step 3: Cross multiply
    15,031.64x = 22,520.71 × 12,817.91
  4. Step 4: Simplify right side
    15,031.64x = 288,668,433.92
  5. Step 5: Solve for x
    x = 288,668,433.92/15,031.64
  6. Step 6: Final answer
    x = 19,204.05

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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.