Home / 22,085.51-30,470.73-13,578.89

Finding the Fourth Proportional to 22,085.51, 30,470.73 and 13,578.89

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Solution

The fourth proportional to 22,085.51, 30,470.73 and 13,578.89 is: 18,734.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,085.51 : 30,470.73 = 13,578.89 : x
  2. Step 2: Convert to fraction form
    22,085.51/30,470.73 = 13,578.89/x
  3. Step 3: Cross multiply
    22,085.51x = 30,470.73 × 13,578.89
  4. Step 4: Simplify right side
    22,085.51x = 413,758,690.89
  5. Step 5: Solve for x
    x = 413,758,690.89/22,085.51
  6. Step 6: Final answer
    x = 18,734.40

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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.