Home / 27,642.98-38,147.33-15,706.35

Finding the Fourth Proportional to 27,642.98, 38,147.33 and 15,706.35

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Solution

The fourth proportional to 27,642.98, 38,147.33 and 15,706.35 is: 21,674.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,642.98 : 38,147.33 = 15,706.35 : x
  2. Step 2: Convert to fraction form
    27,642.98/38,147.33 = 15,706.35/x
  3. Step 3: Cross multiply
    27,642.98x = 38,147.33 × 15,706.35
  4. Step 4: Simplify right side
    27,642.98x = 599,155,355.81
  5. Step 5: Solve for x
    x = 599,155,355.81/27,642.98
  6. Step 6: Final answer
    x = 21,674.77

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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.