Home / 32,780.46-49,159.35-20,281.35

Finding the Fourth Proportional to 32,780.46, 49,159.35 and 20,281.35

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Solution

The fourth proportional to 32,780.46, 49,159.35 and 20,281.35 is: 30,415.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,780.46 : 49,159.35 = 20,281.35 : x
  2. Step 2: Convert to fraction form
    32,780.46/49,159.35 = 20,281.35/x
  3. Step 3: Cross multiply
    32,780.46x = 49,159.35 × 20,281.35
  4. Step 4: Simplify right side
    32,780.46x = 997,017,983.12
  5. Step 5: Solve for x
    x = 997,017,983.12/32,780.46
  6. Step 6: Final answer
    x = 30,415.01

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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.