Home / 32,976.78-45,505.81-21,038.84

Finding the Fourth Proportional to 32,976.78, 45,505.81 and 21,038.84

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Solution

The fourth proportional to 32,976.78, 45,505.81 and 21,038.84 is: 29,032.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,976.78 : 45,505.81 = 21,038.84 : x
  2. Step 2: Convert to fraction form
    32,976.78/45,505.81 = 21,038.84/x
  3. Step 3: Cross multiply
    32,976.78x = 45,505.81 × 21,038.84
  4. Step 4: Simplify right side
    32,976.78x = 957,389,175.53
  5. Step 5: Solve for x
    x = 957,389,175.53/32,976.78
  6. Step 6: Final answer
    x = 29,032.22

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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.