Home / 30,515.64-45,777.78-15,732.60

Finding the Fourth Proportional to 30,515.64, 45,777.78 and 15,732.60

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Solution

The fourth proportional to 30,515.64, 45,777.78 and 15,732.60 is: 23,601.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,515.64 : 45,777.78 = 15,732.60 : x
  2. Step 2: Convert to fraction form
    30,515.64/45,777.78 = 15,732.60/x
  3. Step 3: Cross multiply
    30,515.64x = 45,777.78 × 15,732.60
  4. Step 4: Simplify right side
    30,515.64x = 720,203,501.63
  5. Step 5: Solve for x
    x = 720,203,501.63/30,515.64
  6. Step 6: Final answer
    x = 23,601.13

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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.