Home / 39,116.48-53,979.24-21,211.16

Finding the Fourth Proportional to 39,116.48, 53,979.24 and 21,211.16

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Solution

The fourth proportional to 39,116.48, 53,979.24 and 21,211.16 is: 29,270.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,116.48 : 53,979.24 = 21,211.16 : x
  2. Step 2: Convert to fraction form
    39,116.48/53,979.24 = 21,211.16/x
  3. Step 3: Cross multiply
    39,116.48x = 53,979.24 × 21,211.16
  4. Step 4: Simplify right side
    39,116.48x = 1,144,962,296.32
  5. Step 5: Solve for x
    x = 1,144,962,296.32/39,116.48
  6. Step 6: Final answer
    x = 29,270.59

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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.