Home / 27,730.34-38,271.83-15,794.79

Finding the Fourth Proportional to 27,730.34, 38,271.83 and 15,794.79

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Solution

The fourth proportional to 27,730.34, 38,271.83 and 15,794.79 is: 21,799.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,730.34 : 38,271.83 = 15,794.79 : x
  2. Step 2: Convert to fraction form
    27,730.34/38,271.83 = 15,794.79/x
  3. Step 3: Cross multiply
    27,730.34x = 38,271.83 × 15,794.79
  4. Step 4: Simplify right side
    27,730.34x = 604,495,326.41
  5. Step 5: Solve for x
    x = 604,495,326.41/27,730.34
  6. Step 6: Final answer
    x = 21,799.06

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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.