Home / 30,838.27-42,556.86-16,691.08

Finding the Fourth Proportional to 30,838.27, 42,556.86 and 16,691.08

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Solution

The fourth proportional to 30,838.27, 42,556.86 and 16,691.08 is: 23,033.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,838.27 : 42,556.86 = 16,691.08 : x
  2. Step 2: Convert to fraction form
    30,838.27/42,556.86 = 16,691.08/x
  3. Step 3: Cross multiply
    30,838.27x = 42,556.86 × 16,691.08
  4. Step 4: Simplify right side
    30,838.27x = 710,319,954.81
  5. Step 5: Solve for x
    x = 710,319,954.81/30,838.27
  6. Step 6: Final answer
    x = 23,033.72

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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.