Home / 32,900.76-45,392.40-20,140.65

Finding the Fourth Proportional to 32,900.76, 45,392.40 and 20,140.65

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Solution

The fourth proportional to 32,900.76, 45,392.40 and 20,140.65 is: 27,787.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,900.76 : 45,392.40 = 20,140.65 : x
  2. Step 2: Convert to fraction form
    32,900.76/45,392.40 = 20,140.65/x
  3. Step 3: Cross multiply
    32,900.76x = 45,392.40 × 20,140.65
  4. Step 4: Simplify right side
    32,900.76x = 914,232,441.06
  5. Step 5: Solve for x
    x = 914,232,441.06/32,900.76
  6. Step 6: Final answer
    x = 27,787.58

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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.