Home / 30,853.91-42,578.70-16,707.06

Finding the Fourth Proportional to 30,853.91, 42,578.70 and 16,707.06

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Solution

The fourth proportional to 30,853.91, 42,578.70 and 16,707.06 is: 23,055.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,853.91 : 42,578.70 = 16,707.06 : x
  2. Step 2: Convert to fraction form
    30,853.91/42,578.70 = 16,707.06/x
  3. Step 3: Cross multiply
    30,853.91x = 42,578.70 × 16,707.06
  4. Step 4: Simplify right side
    30,853.91x = 711,364,599.19
  5. Step 5: Solve for x
    x = 711,364,599.19/30,853.91
  6. Step 6: Final answer
    x = 23,055.90

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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.