Home / 21,256.89-29,303.79-14,074.77

Finding the Fourth Proportional to 21,256.89, 29,303.79 and 14,074.77

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Solution

The fourth proportional to 21,256.89, 29,303.79 and 14,074.77 is: 19,402.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,256.89 : 29,303.79 = 14,074.77 : x
  2. Step 2: Convert to fraction form
    21,256.89/29,303.79 = 14,074.77/x
  3. Step 3: Cross multiply
    21,256.89x = 29,303.79 × 14,074.77
  4. Step 4: Simplify right side
    21,256.89x = 412,444,104.38
  5. Step 5: Solve for x
    x = 412,444,104.38/21,256.89
  6. Step 6: Final answer
    x = 19,402.84

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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.