Home / 27,661.81-38,176.52-15,726.93

Finding the Fourth Proportional to 27,661.81, 38,176.52 and 15,726.93

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Solution

The fourth proportional to 27,661.81, 38,176.52 and 15,726.93 is: 21,705.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,661.81 : 38,176.52 = 15,726.93 : x
  2. Step 2: Convert to fraction form
    27,661.81/38,176.52 = 15,726.93/x
  3. Step 3: Cross multiply
    27,661.81x = 38,176.52 × 15,726.93
  4. Step 4: Simplify right side
    27,661.81x = 600,399,457.68
  5. Step 5: Solve for x
    x = 600,399,457.68/27,661.81
  6. Step 6: Final answer
    x = 21,705.00

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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.