Home / 28,287.19-42,430.77-7,227.27

Finding the Fourth Proportional to 28,287.19, 42,430.77 and 7,227.27

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Solution

The fourth proportional to 28,287.19, 42,430.77 and 7,227.27 is: 10,840.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,287.19 : 42,430.77 = 7,227.27 : x
  2. Step 2: Convert to fraction form
    28,287.19/42,430.77 = 7,227.27/x
  3. Step 3: Cross multiply
    28,287.19x = 42,430.77 × 7,227.27
  4. Step 4: Simplify right side
    28,287.19x = 306,658,631.10
  5. Step 5: Solve for x
    x = 306,658,631.10/28,287.19
  6. Step 6: Final answer
    x = 10,840.90

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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.