Home / 30,904.32-42,632.26-19,554.68

Finding the Fourth Proportional to 30,904.32, 42,632.26 and 19,554.68

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Solution

The fourth proportional to 30,904.32, 42,632.26 and 19,554.68 is: 26,975.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,904.32 : 42,632.26 = 19,554.68 : x
  2. Step 2: Convert to fraction form
    30,904.32/42,632.26 = 19,554.68/x
  3. Step 3: Cross multiply
    30,904.32x = 42,632.26 × 19,554.68
  4. Step 4: Simplify right side
    30,904.32x = 833,660,201.98
  5. Step 5: Solve for x
    x = 833,660,201.98/30,904.32
  6. Step 6: Final answer
    x = 26,975.52

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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.