Home / 32,612.32-45,032.58-20,696.80

Finding the Fourth Proportional to 32,612.32, 45,032.58 and 20,696.80

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Solution

The fourth proportional to 32,612.32, 45,032.58 and 20,696.80 is: 28,579.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,612.32 : 45,032.58 = 20,696.80 : x
  2. Step 2: Convert to fraction form
    32,612.32/45,032.58 = 20,696.80/x
  3. Step 3: Cross multiply
    32,612.32x = 45,032.58 × 20,696.80
  4. Step 4: Simplify right side
    32,612.32x = 932,030,301.74
  5. Step 5: Solve for x
    x = 932,030,301.74/32,612.32
  6. Step 6: Final answer
    x = 28,579.09

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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.