Home / 15,839.37-21,887.24-15,070.77

Finding the Fourth Proportional to 15,839.37, 21,887.24 and 15,070.77

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Solution

The fourth proportional to 15,839.37, 21,887.24 and 15,070.77 is: 20,825.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,839.37 : 21,887.24 = 15,070.77 : x
  2. Step 2: Convert to fraction form
    15,839.37/21,887.24 = 15,070.77/x
  3. Step 3: Cross multiply
    15,839.37x = 21,887.24 × 15,070.77
  4. Step 4: Simplify right side
    15,839.37x = 329,857,484.62
  5. Step 5: Solve for x
    x = 329,857,484.62/15,839.37
  6. Step 6: Final answer
    x = 20,825.16

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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.