Home / 32,916.60-45,410.40-20,977.20

Finding the Fourth Proportional to 32,916.60, 45,410.40 and 20,977.20

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Solution

The fourth proportional to 32,916.60, 45,410.40 and 20,977.20 is: 28,939.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,916.60 : 45,410.40 = 20,977.20 : x
  2. Step 2: Convert to fraction form
    32,916.60/45,410.40 = 20,977.20/x
  3. Step 3: Cross multiply
    32,916.60x = 45,410.40 × 20,977.20
  4. Step 4: Simplify right side
    32,916.60x = 952,583,042.88
  5. Step 5: Solve for x
    x = 952,583,042.88/32,916.60
  6. Step 6: Final answer
    x = 28,939.29

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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.