Home / 39,242.07-54,153.79-21,337.09

Finding the Fourth Proportional to 39,242.07, 54,153.79 and 21,337.09

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Solution

The fourth proportional to 39,242.07, 54,153.79 and 21,337.09 is: 29,445.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,242.07 : 54,153.79 = 21,337.09 : x
  2. Step 2: Convert to fraction form
    39,242.07/54,153.79 = 21,337.09/x
  3. Step 3: Cross multiply
    39,242.07x = 54,153.79 × 21,337.09
  4. Step 4: Simplify right side
    39,242.07x = 1,155,484,102.34
  5. Step 5: Solve for x
    x = 1,155,484,102.34/39,242.07
  6. Step 6: Final answer
    x = 29,445.03

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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.