Home / 32,730.28-45,167.32-21,418.63

Finding the Fourth Proportional to 32,730.28, 45,167.32 and 21,418.63

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Solution

The fourth proportional to 32,730.28, 45,167.32 and 21,418.63 is: 29,557.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,730.28 : 45,167.32 = 21,418.63 : x
  2. Step 2: Convert to fraction form
    32,730.28/45,167.32 = 21,418.63/x
  3. Step 3: Cross multiply
    32,730.28x = 45,167.32 × 21,418.63
  4. Step 4: Simplify right side
    32,730.28x = 967,422,029.03
  5. Step 5: Solve for x
    x = 967,422,029.03/32,730.28
  6. Step 6: Final answer
    x = 29,557.40

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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.