Home / 42,852.54-64,288.80-13,268.79

Finding the Fourth Proportional to 42,852.54, 64,288.80 and 13,268.79

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Solution

The fourth proportional to 42,852.54, 64,288.80 and 13,268.79 is: 19,906.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,852.54 : 64,288.80 = 13,268.79 : x
  2. Step 2: Convert to fraction form
    42,852.54/64,288.80 = 13,268.79/x
  3. Step 3: Cross multiply
    42,852.54x = 64,288.80 × 13,268.79
  4. Step 4: Simplify right side
    42,852.54x = 853,034,586.55
  5. Step 5: Solve for x
    x = 853,034,586.55/42,852.54
  6. Step 6: Final answer
    x = 19,906.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.