Home / 20,612.21-30,870.18-15,051.76

Finding the Fourth Proportional to 20,612.21, 30,870.18 and 15,051.76

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Solution

The fourth proportional to 20,612.21, 30,870.18 and 15,051.76 is: 22,542.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,612.21 : 30,870.18 = 15,051.76 : x
  2. Step 2: Convert to fraction form
    20,612.21/30,870.18 = 15,051.76/x
  3. Step 3: Cross multiply
    20,612.21x = 30,870.18 × 15,051.76
  4. Step 4: Simplify right side
    20,612.21x = 464,650,463.34
  5. Step 5: Solve for x
    x = 464,650,463.34/20,612.21
  6. Step 6: Final answer
    x = 22,542.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.