Home / 28,055.76-38,718.71-15,956.94

Finding the Fourth Proportional to 28,055.76, 38,718.71 and 15,956.94

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Solution

The fourth proportional to 28,055.76, 38,718.71 and 15,956.94 is: 22,021.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,055.76 : 38,718.71 = 15,956.94 : x
  2. Step 2: Convert to fraction form
    28,055.76/38,718.71 = 15,956.94/x
  3. Step 3: Cross multiply
    28,055.76x = 38,718.71 × 15,956.94
  4. Step 4: Simplify right side
    28,055.76x = 617,832,052.56
  5. Step 5: Solve for x
    x = 617,832,052.56/28,055.76
  6. Step 6: Final answer
    x = 22,021.58

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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.