Home / 27,847.01-38,430.91-15,910.09

Finding the Fourth Proportional to 27,847.01, 38,430.91 and 15,910.09

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Solution

The fourth proportional to 27,847.01, 38,430.91 and 15,910.09 is: 21,957.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,847.01 : 38,430.91 = 15,910.09 : x
  2. Step 2: Convert to fraction form
    27,847.01/38,430.91 = 15,910.09/x
  3. Step 3: Cross multiply
    27,847.01x = 38,430.91 × 15,910.09
  4. Step 4: Simplify right side
    27,847.01x = 611,439,421.61
  5. Step 5: Solve for x
    x = 611,439,421.61/27,847.01
  6. Step 6: Final answer
    x = 21,957.09

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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.