Home / 28,083.96-42,130.26-10,555.02

Finding the Fourth Proportional to 28,083.96, 42,130.26 and 10,555.02

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Solution

The fourth proportional to 28,083.96, 42,130.26 and 10,555.02 is: 15,834.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,083.96 : 42,130.26 = 10,555.02 : x
  2. Step 2: Convert to fraction form
    28,083.96/42,130.26 = 10,555.02/x
  3. Step 3: Cross multiply
    28,083.96x = 42,130.26 × 10,555.02
  4. Step 4: Simplify right side
    28,083.96x = 444,685,736.91
  5. Step 5: Solve for x
    x = 444,685,736.91/28,083.96
  6. Step 6: Final answer
    x = 15,834.15

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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.