Home / 19,261.40-28,900.20-10,502.60

Finding the Fourth Proportional to 19,261.40, 28,900.20 and 10,502.60

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Solution

The fourth proportional to 19,261.40, 28,900.20 and 10,502.60 is: 15,758.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,261.40 : 28,900.20 = 10,502.60 : x
  2. Step 2: Convert to fraction form
    19,261.40/28,900.20 = 10,502.60/x
  3. Step 3: Cross multiply
    19,261.40x = 28,900.20 × 10,502.60
  4. Step 4: Simplify right side
    19,261.40x = 303,527,240.52
  5. Step 5: Solve for x
    x = 303,527,240.52/19,261.40
  6. Step 6: Final answer
    x = 15,758.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.