Home / 32,699.75-45,141.65-21,940.77

Finding the Fourth Proportional to 32,699.75, 45,141.65 and 21,940.77

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Solution

The fourth proportional to 32,699.75, 45,141.65 and 21,940.77 is: 30,289.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,699.75 : 45,141.65 = 21,940.77 : x
  2. Step 2: Convert to fraction form
    32,699.75/45,141.65 = 21,940.77/x
  3. Step 3: Cross multiply
    32,699.75x = 45,141.65 × 21,940.77
  4. Step 4: Simplify right side
    32,699.75x = 990,442,825.34
  5. Step 5: Solve for x
    x = 990,442,825.34/32,699.75
  6. Step 6: Final answer
    x = 30,289.00

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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.