Home / 16,840.29-23,238.93-10,129.68

Finding the Fourth Proportional to 16,840.29, 23,238.93 and 10,129.68

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Solution

The fourth proportional to 16,840.29, 23,238.93 and 10,129.68 is: 13,978.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,840.29 : 23,238.93 = 10,129.68 : x
  2. Step 2: Convert to fraction form
    16,840.29/23,238.93 = 10,129.68/x
  3. Step 3: Cross multiply
    16,840.29x = 23,238.93 × 10,129.68
  4. Step 4: Simplify right side
    16,840.29x = 235,402,924.44
  5. Step 5: Solve for x
    x = 235,402,924.44/16,840.29
  6. Step 6: Final answer
    x = 13,978.56

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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.