Home / 16,930.89-23,364.65-10,129.32

Finding the Fourth Proportional to 16,930.89, 23,364.65 and 10,129.32

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Solution

The fourth proportional to 16,930.89, 23,364.65 and 10,129.32 is: 13,978.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,930.89 : 23,364.65 = 10,129.32 : x
  2. Step 2: Convert to fraction form
    16,930.89/23,364.65 = 10,129.32/x
  3. Step 3: Cross multiply
    16,930.89x = 23,364.65 × 10,129.32
  4. Step 4: Simplify right side
    16,930.89x = 236,668,041.86
  5. Step 5: Solve for x
    x = 236,668,041.86/16,930.89
  6. Step 6: Final answer
    x = 13,978.48

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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.