Home / 30,159.28-41,620.06-16,731.40

Finding the Fourth Proportional to 30,159.28, 41,620.06 and 16,731.40

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Solution

The fourth proportional to 30,159.28, 41,620.06 and 16,731.40 is: 23,089.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,159.28 : 41,620.06 = 16,731.40 : x
  2. Step 2: Convert to fraction form
    30,159.28/41,620.06 = 16,731.40/x
  3. Step 3: Cross multiply
    30,159.28x = 41,620.06 × 16,731.40
  4. Step 4: Simplify right side
    30,159.28x = 696,361,871.88
  5. Step 5: Solve for x
    x = 696,361,871.88/30,159.28
  6. Step 6: Final answer
    x = 23,089.47

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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.