Home / 39,207.08-54,106.01-21,302.07

Finding the Fourth Proportional to 39,207.08, 54,106.01 and 21,302.07

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Solution

The fourth proportional to 39,207.08, 54,106.01 and 21,302.07 is: 29,396.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,207.08 : 54,106.01 = 21,302.07 : x
  2. Step 2: Convert to fraction form
    39,207.08/54,106.01 = 21,302.07/x
  3. Step 3: Cross multiply
    39,207.08x = 54,106.01 × 21,302.07
  4. Step 4: Simplify right side
    39,207.08x = 1,152,569,905.93
  5. Step 5: Solve for x
    x = 1,152,569,905.93/39,207.08
  6. Step 6: Final answer
    x = 29,396.99

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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.