Home / 27,783.24-38,341.25-15,847.68

Finding the Fourth Proportional to 27,783.24, 38,341.25 and 15,847.68

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Solution

The fourth proportional to 27,783.24, 38,341.25 and 15,847.68 is: 21,870.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,783.24 : 38,341.25 = 15,847.68 : x
  2. Step 2: Convert to fraction form
    27,783.24/38,341.25 = 15,847.68/x
  3. Step 3: Cross multiply
    27,783.24x = 38,341.25 × 15,847.68
  4. Step 4: Simplify right side
    27,783.24x = 607,619,984.77
  5. Step 5: Solve for x
    x = 607,619,984.77/27,783.24
  6. Step 6: Final answer
    x = 21,870.02

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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.