Home / 21,527.56-29,730.54-14,830.48

Finding the Fourth Proportional to 21,527.56, 29,730.54 and 14,830.48

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Solution

The fourth proportional to 21,527.56, 29,730.54 and 14,830.48 is: 20,481.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,527.56 : 29,730.54 = 14,830.48 : x
  2. Step 2: Convert to fraction form
    21,527.56/29,730.54 = 14,830.48/x
  3. Step 3: Cross multiply
    21,527.56x = 29,730.54 × 14,830.48
  4. Step 4: Simplify right side
    21,527.56x = 440,918,178.86
  5. Step 5: Solve for x
    x = 440,918,178.86/21,527.56
  6. Step 6: Final answer
    x = 20,481.57

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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.