Home / 27,800.79-38,365.40-15,054.26

Finding the Fourth Proportional to 27,800.79, 38,365.40 and 15,054.26

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Solution

The fourth proportional to 27,800.79, 38,365.40 and 15,054.26 is: 20,775.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,800.79 : 38,365.40 = 15,054.26 : x
  2. Step 2: Convert to fraction form
    27,800.79/38,365.40 = 15,054.26/x
  3. Step 3: Cross multiply
    27,800.79x = 38,365.40 × 15,054.26
  4. Step 4: Simplify right side
    27,800.79x = 577,562,696.28
  5. Step 5: Solve for x
    x = 577,562,696.28/27,800.79
  6. Step 6: Final answer
    x = 20,775.05

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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.