Home / 27,708.51-38,236.64-15,133.71

Finding the Fourth Proportional to 27,708.51, 38,236.64 and 15,133.71

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Solution

The fourth proportional to 27,708.51, 38,236.64 and 15,133.71 is: 20,883.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,708.51 : 38,236.64 = 15,133.71 : x
  2. Step 2: Convert to fraction form
    27,708.51/38,236.64 = 15,133.71/x
  3. Step 3: Cross multiply
    27,708.51x = 38,236.64 × 15,133.71
  4. Step 4: Simplify right side
    27,708.51x = 578,662,145.47
  5. Step 5: Solve for x
    x = 578,662,145.47/27,708.51
  6. Step 6: Final answer
    x = 20,883.91

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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.