Home / 28,313.77-39,073.25-15,393.07

Finding the Fourth Proportional to 28,313.77, 39,073.25 and 15,393.07

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Solution

The fourth proportional to 28,313.77, 39,073.25 and 15,393.07 is: 21,242.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,313.77 : 39,073.25 = 15,393.07 : x
  2. Step 2: Convert to fraction form
    28,313.77/39,073.25 = 15,393.07/x
  3. Step 3: Cross multiply
    28,313.77x = 39,073.25 × 15,393.07
  4. Step 4: Simplify right side
    28,313.77x = 601,457,351.93
  5. Step 5: Solve for x
    x = 601,457,351.93/28,313.77
  6. Step 6: Final answer
    x = 21,242.57

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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.