Home / 28,312.70-39,091.82-19,833.63

Finding the Fourth Proportional to 28,312.70, 39,091.82 and 19,833.63

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Solution

The fourth proportional to 28,312.70, 39,091.82 and 19,833.63 is: 27,384.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,312.70 : 39,091.82 = 19,833.63 : x
  2. Step 2: Convert to fraction form
    28,312.70/39,091.82 = 19,833.63/x
  3. Step 3: Cross multiply
    28,312.70x = 39,091.82 × 19,833.63
  4. Step 4: Simplify right side
    28,312.70x = 775,332,594.74
  5. Step 5: Solve for x
    x = 775,332,594.74/28,312.70
  6. Step 6: Final answer
    x = 27,384.63

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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.