Home / 15,635.70-21,577.18-14,364.86

Finding the Fourth Proportional to 15,635.70, 21,577.18 and 14,364.86

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Solution

The fourth proportional to 15,635.70, 21,577.18 and 14,364.86 is: 19,823.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,635.70 : 21,577.18 = 14,364.86 : x
  2. Step 2: Convert to fraction form
    15,635.70/21,577.18 = 14,364.86/x
  3. Step 3: Cross multiply
    15,635.70x = 21,577.18 × 14,364.86
  4. Step 4: Simplify right side
    15,635.70x = 309,953,169.89
  5. Step 5: Solve for x
    x = 309,953,169.89/15,635.70
  6. Step 6: Final answer
    x = 19,823.43

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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.