Home / 32,671.21-45,079.40-21,357.36

Finding the Fourth Proportional to 32,671.21, 45,079.40 and 21,357.36

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Solution

The fourth proportional to 32,671.21, 45,079.40 and 21,357.36 is: 29,468.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,671.21 : 45,079.40 = 21,357.36 : x
  2. Step 2: Convert to fraction form
    32,671.21/45,079.40 = 21,357.36/x
  3. Step 3: Cross multiply
    32,671.21x = 45,079.40 × 21,357.36
  4. Step 4: Simplify right side
    32,671.21x = 962,776,974.38
  5. Step 5: Solve for x
    x = 962,776,974.38/32,671.21
  6. Step 6: Final answer
    x = 29,468.67

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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.