Home / 27,735.12-38,274.42-15,798.45

Finding the Fourth Proportional to 27,735.12, 38,274.42 and 15,798.45

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Solution

The fourth proportional to 27,735.12, 38,274.42 and 15,798.45 is: 21,801.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,735.12 : 38,274.42 = 15,798.45 : x
  2. Step 2: Convert to fraction form
    27,735.12/38,274.42 = 15,798.45/x
  3. Step 3: Cross multiply
    27,735.12x = 38,274.42 × 15,798.45
  4. Step 4: Simplify right side
    27,735.12x = 604,676,510.65
  5. Step 5: Solve for x
    x = 604,676,510.65/27,735.12
  6. Step 6: Final answer
    x = 21,801.84

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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.