Home / 27,956.52-38,570.81-15,855.62

Finding the Fourth Proportional to 27,956.52, 38,570.81 and 15,855.62

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Solution

The fourth proportional to 27,956.52, 38,570.81 and 15,855.62 is: 21,875.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,956.52 : 38,570.81 = 15,855.62 : x
  2. Step 2: Convert to fraction form
    27,956.52/38,570.81 = 15,855.62/x
  3. Step 3: Cross multiply
    27,956.52x = 38,570.81 × 15,855.62
  4. Step 4: Simplify right side
    27,956.52x = 611,564,106.45
  5. Step 5: Solve for x
    x = 611,564,106.45/27,956.52
  6. Step 6: Final answer
    x = 21,875.54

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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.