Home / 30,161.07-45,264.69-21,723.51

Finding the Fourth Proportional to 30,161.07, 45,264.69 and 21,723.51

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Solution

The fourth proportional to 30,161.07, 45,264.69 and 21,723.51 is: 32,601.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,161.07 : 45,264.69 = 21,723.51 : x
  2. Step 2: Convert to fraction form
    30,161.07/45,264.69 = 21,723.51/x
  3. Step 3: Cross multiply
    30,161.07x = 45,264.69 × 21,723.51
  4. Step 4: Simplify right side
    30,161.07x = 983,307,945.86
  5. Step 5: Solve for x
    x = 983,307,945.86/30,161.07
  6. Step 6: Final answer
    x = 32,601.89

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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.