Home / 21,566.04-29,755.20-12,615.72

Finding the Fourth Proportional to 21,566.04, 29,755.20 and 12,615.72

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Solution

The fourth proportional to 21,566.04, 29,755.20 and 12,615.72 is: 17,406.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,566.04 : 29,755.20 = 12,615.72 : x
  2. Step 2: Convert to fraction form
    21,566.04/29,755.20 = 12,615.72/x
  3. Step 3: Cross multiply
    21,566.04x = 29,755.20 × 12,615.72
  4. Step 4: Simplify right side
    21,566.04x = 375,383,271.74
  5. Step 5: Solve for x
    x = 375,383,271.74/21,566.04
  6. Step 6: Final answer
    x = 17,406.22

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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.