Home / 30,035.29-45,039.27-15,991.72

Finding the Fourth Proportional to 30,035.29, 45,039.27 and 15,991.72

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Solution

The fourth proportional to 30,035.29, 45,039.27 and 15,991.72 is: 23,980.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,035.29 : 45,039.27 = 15,991.72 : x
  2. Step 2: Convert to fraction form
    30,035.29/45,039.27 = 15,991.72/x
  3. Step 3: Cross multiply
    30,035.29x = 45,039.27 × 15,991.72
  4. Step 4: Simplify right side
    30,035.29x = 720,255,394.84
  5. Step 5: Solve for x
    x = 720,255,394.84/30,035.29
  6. Step 6: Final answer
    x = 23,980.30

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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.