Home / 27,783.09-38,341.76-15,207.84

Finding the Fourth Proportional to 27,783.09, 38,341.76 and 15,207.84

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Solution

The fourth proportional to 27,783.09, 38,341.76 and 15,207.84 is: 20,987.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,783.09 : 38,341.76 = 15,207.84 : x
  2. Step 2: Convert to fraction form
    27,783.09/38,341.76 = 15,207.84/x
  3. Step 3: Cross multiply
    27,783.09x = 38,341.76 × 15,207.84
  4. Step 4: Simplify right side
    27,783.09x = 583,095,275.36
  5. Step 5: Solve for x
    x = 583,095,275.36/27,783.09
  6. Step 6: Final answer
    x = 20,987.42

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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.