Home / 30,285.42-45,428.31-10,563.90

Finding the Fourth Proportional to 30,285.42, 45,428.31 and 10,563.90

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Solution

The fourth proportional to 30,285.42, 45,428.31 and 10,563.90 is: 15,845.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,285.42 : 45,428.31 = 10,563.90 : x
  2. Step 2: Convert to fraction form
    30,285.42/45,428.31 = 10,563.90/x
  3. Step 3: Cross multiply
    30,285.42x = 45,428.31 × 10,563.90
  4. Step 4: Simplify right side
    30,285.42x = 479,900,124.01
  5. Step 5: Solve for x
    x = 479,900,124.01/30,285.42
  6. Step 6: Final answer
    x = 15,845.91

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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.