Home / 27,439.18-37,865.98-15,502.51

Finding the Fourth Proportional to 27,439.18, 37,865.98 and 15,502.51

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Solution

The fourth proportional to 27,439.18, 37,865.98 and 15,502.51 is: 21,393.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,439.18 : 37,865.98 = 15,502.51 : x
  2. Step 2: Convert to fraction form
    27,439.18/37,865.98 = 15,502.51/x
  3. Step 3: Cross multiply
    27,439.18x = 37,865.98 × 15,502.51
  4. Step 4: Simplify right side
    27,439.18x = 587,017,638.94
  5. Step 5: Solve for x
    x = 587,017,638.94/27,439.18
  6. Step 6: Final answer
    x = 21,393.41

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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.