Home / 28,212.23-42,305.09-10,430.64

Finding the Fourth Proportional to 28,212.23, 42,305.09 and 10,430.64

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Solution

The fourth proportional to 28,212.23, 42,305.09 and 10,430.64 is: 15,641.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,212.23 : 42,305.09 = 10,430.64 : x
  2. Step 2: Convert to fraction form
    28,212.23/42,305.09 = 10,430.64/x
  3. Step 3: Cross multiply
    28,212.23x = 42,305.09 × 10,430.64
  4. Step 4: Simplify right side
    28,212.23x = 441,269,111.80
  5. Step 5: Solve for x
    x = 441,269,111.80/28,212.23
  6. Step 6: Final answer
    x = 15,641.06

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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.