Home / 25,977.38-35,860.72-15,220.76

Finding the Fourth Proportional to 25,977.38, 35,860.72 and 15,220.76

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Solution

The fourth proportional to 25,977.38, 35,860.72 and 15,220.76 is: 21,011.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,977.38 : 35,860.72 = 15,220.76 : x
  2. Step 2: Convert to fraction form
    25,977.38/35,860.72 = 15,220.76/x
  3. Step 3: Cross multiply
    25,977.38x = 35,860.72 × 15,220.76
  4. Step 4: Simplify right side
    25,977.38x = 545,827,412.55
  5. Step 5: Solve for x
    x = 545,827,412.55/25,977.38
  6. Step 6: Final answer
    x = 21,011.64

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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.