Home / 39,029.85-53,861.04-21,125.16

Finding the Fourth Proportional to 39,029.85, 53,861.04 and 21,125.16

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Solution

The fourth proportional to 39,029.85, 53,861.04 and 21,125.16 is: 29,152.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,029.85 : 53,861.04 = 21,125.16 : x
  2. Step 2: Convert to fraction form
    39,029.85/53,861.04 = 21,125.16/x
  3. Step 3: Cross multiply
    39,029.85x = 53,861.04 × 21,125.16
  4. Step 4: Simplify right side
    39,029.85x = 1,137,823,087.77
  5. Step 5: Solve for x
    x = 1,137,823,087.77/39,029.85
  6. Step 6: Final answer
    x = 29,152.64

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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.