Home / 25,690.58-35,455.55-15,079.98

Finding the Fourth Proportional to 25,690.58, 35,455.55 and 15,079.98

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Solution

The fourth proportional to 25,690.58, 35,455.55 and 15,079.98 is: 20,811.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,690.58 : 35,455.55 = 15,079.98 : x
  2. Step 2: Convert to fraction form
    25,690.58/35,455.55 = 15,079.98/x
  3. Step 3: Cross multiply
    25,690.58x = 35,455.55 × 15,079.98
  4. Step 4: Simplify right side
    25,690.58x = 534,668,909.49
  5. Step 5: Solve for x
    x = 534,668,909.49/25,690.58
  6. Step 6: Final answer
    x = 20,811.87

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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.