Home / 32,979.96-45,477.45-21,043.80

Finding the Fourth Proportional to 32,979.96, 45,477.45 and 21,043.80

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Solution

The fourth proportional to 32,979.96, 45,477.45 and 21,043.80 is: 29,018.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,979.96 : 45,477.45 = 21,043.80 : x
  2. Step 2: Convert to fraction form
    32,979.96/45,477.45 = 21,043.80/x
  3. Step 3: Cross multiply
    32,979.96x = 45,477.45 × 21,043.80
  4. Step 4: Simplify right side
    32,979.96x = 957,018,362.31
  5. Step 5: Solve for x
    x = 957,018,362.31/32,979.96
  6. Step 6: Final answer
    x = 29,018.18

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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.