Home / 32,815.74-45,335.16-21,512.10

Finding the Fourth Proportional to 32,815.74, 45,335.16 and 21,512.10

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Solution

The fourth proportional to 32,815.74, 45,335.16 and 21,512.10 is: 29,719.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,815.74 : 45,335.16 = 21,512.10 : x
  2. Step 2: Convert to fraction form
    32,815.74/45,335.16 = 21,512.10/x
  3. Step 3: Cross multiply
    32,815.74x = 45,335.16 × 21,512.10
  4. Step 4: Simplify right side
    32,815.74x = 975,254,495.44
  5. Step 5: Solve for x
    x = 975,254,495.44/32,815.74
  6. Step 6: Final answer
    x = 29,719.11

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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.