Home / 21,763.58-30,031.04-13,262.60

Finding the Fourth Proportional to 21,763.58, 30,031.04 and 13,262.60

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Solution

The fourth proportional to 21,763.58, 30,031.04 and 13,262.60 is: 18,300.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,763.58 : 30,031.04 = 13,262.60 : x
  2. Step 2: Convert to fraction form
    21,763.58/30,031.04 = 13,262.60/x
  3. Step 3: Cross multiply
    21,763.58x = 30,031.04 × 13,262.60
  4. Step 4: Simplify right side
    21,763.58x = 398,289,454.64
  5. Step 5: Solve for x
    x = 398,289,454.64/21,763.58
  6. Step 6: Final answer
    x = 18,300.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.