Home / 38,959.67-53,769-21,967.16

Finding the Fourth Proportional to 38,959.67, 53,769 and 21,967.16

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Solution

The fourth proportional to 38,959.67, 53,769 and 21,967.16 is: 30,317.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,959.67 : 53,769 = 21,967.16 : x
  2. Step 2: Convert to fraction form
    38,959.67/53,769 = 21,967.16/x
  3. Step 3: Cross multiply
    38,959.67x = 53,769 × 21,967.16
  4. Step 4: Simplify right side
    38,959.67x = 1,181,151,957.20
  5. Step 5: Solve for x
    x = 1,181,151,957.20/38,959.67
  6. Step 6: Final answer
    x = 30,317.30

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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.