Home / 21,578.32-29,766.72-14,014.54

Finding the Fourth Proportional to 21,578.32, 29,766.72 and 14,014.54

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Solution

The fourth proportional to 21,578.32, 29,766.72 and 14,014.54 is: 19,332.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,578.32 : 29,766.72 = 14,014.54 : x
  2. Step 2: Convert to fraction form
    21,578.32/29,766.72 = 14,014.54/x
  3. Step 3: Cross multiply
    21,578.32x = 29,766.72 × 14,014.54
  4. Step 4: Simplify right side
    21,578.32x = 417,166,888.11
  5. Step 5: Solve for x
    x = 417,166,888.11/21,578.32
  6. Step 6: Final answer
    x = 19,332.69

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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.