Home / 30,430.87-42,006.32-27,238.54

Finding the Fourth Proportional to 30,430.87, 42,006.32 and 27,238.54

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Solution

The fourth proportional to 30,430.87, 42,006.32 and 27,238.54 is: 37,599.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,430.87 : 42,006.32 = 27,238.54 : x
  2. Step 2: Convert to fraction form
    30,430.87/42,006.32 = 27,238.54/x
  3. Step 3: Cross multiply
    30,430.87x = 42,006.32 × 27,238.54
  4. Step 4: Simplify right side
    30,430.87x = 1,144,190,827.57
  5. Step 5: Solve for x
    x = 1,144,190,827.57/30,430.87
  6. Step 6: Final answer
    x = 37,599.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.