Home / 28,357.63-42,541.07-8,631.56

Finding the Fourth Proportional to 28,357.63, 42,541.07 and 8,631.56

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Solution

The fourth proportional to 28,357.63, 42,541.07 and 8,631.56 is: 12,948.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,357.63 : 42,541.07 = 8,631.56 : x
  2. Step 2: Convert to fraction form
    28,357.63/42,541.07 = 8,631.56/x
  3. Step 3: Cross multiply
    28,357.63x = 42,541.07 × 8,631.56
  4. Step 4: Simplify right side
    28,357.63x = 367,195,861.36
  5. Step 5: Solve for x
    x = 367,195,861.36/28,357.63
  6. Step 6: Final answer
    x = 12,948.75

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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.