Home / 27,762.90-38,312.46-15,825.84

Finding the Fourth Proportional to 27,762.90, 38,312.46 and 15,825.84

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Solution

The fourth proportional to 27,762.90, 38,312.46 and 15,825.84 is: 21,839.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,762.90 : 38,312.46 = 15,825.84 : x
  2. Step 2: Convert to fraction form
    27,762.90/38,312.46 = 15,825.84/x
  3. Step 3: Cross multiply
    27,762.90x = 38,312.46 × 15,825.84
  4. Step 4: Simplify right side
    27,762.90x = 606,326,861.97
  5. Step 5: Solve for x
    x = 606,326,861.97/27,762.90
  6. Step 6: Final answer
    x = 21,839.46

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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.