Home / 39,112.93-53,975.53-21,207.88

Finding the Fourth Proportional to 39,112.93, 53,975.53 and 21,207.88

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Solution

The fourth proportional to 39,112.93, 53,975.53 and 21,207.88 is: 29,266.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,112.93 : 53,975.53 = 21,207.88 : x
  2. Step 2: Convert to fraction form
    39,112.93/53,975.53 = 21,207.88/x
  3. Step 3: Cross multiply
    39,112.93x = 53,975.53 × 21,207.88
  4. Step 4: Simplify right side
    39,112.93x = 1,144,706,563.18
  5. Step 5: Solve for x
    x = 1,144,706,563.18/39,112.93
  6. Step 6: Final answer
    x = 29,266.70

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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.