Home / 28,313.19-42,470.75-7,536.71

Finding the Fourth Proportional to 28,313.19, 42,470.75 and 7,536.71

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Solution

The fourth proportional to 28,313.19, 42,470.75 and 7,536.71 is: 11,305.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,313.19 : 42,470.75 = 7,536.71 : x
  2. Step 2: Convert to fraction form
    28,313.19/42,470.75 = 7,536.71/x
  3. Step 3: Cross multiply
    28,313.19x = 42,470.75 × 7,536.71
  4. Step 4: Simplify right side
    28,313.19x = 320,089,726.23
  5. Step 5: Solve for x
    x = 320,089,726.23/28,313.19
  6. Step 6: Final answer
    x = 11,305.32

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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.