Home / 27,825.51-38,412.50-15,886.54

Finding the Fourth Proportional to 27,825.51, 38,412.50 and 15,886.54

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Solution

The fourth proportional to 27,825.51, 38,412.50 and 15,886.54 is: 21,931.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,825.51 : 38,412.50 = 15,886.54 : x
  2. Step 2: Convert to fraction form
    27,825.51/38,412.50 = 15,886.54/x
  3. Step 3: Cross multiply
    27,825.51x = 38,412.50 × 15,886.54
  4. Step 4: Simplify right side
    27,825.51x = 610,241,717.75
  5. Step 5: Solve for x
    x = 610,241,717.75/27,825.51
  6. Step 6: Final answer
    x = 21,931.02

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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.