Home / 30,854.07-42,578.61-16,706.91

Finding the Fourth Proportional to 30,854.07, 42,578.61 and 16,706.91

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Solution

The fourth proportional to 30,854.07, 42,578.61 and 16,706.91 is: 23,055.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,854.07 : 42,578.61 = 16,706.91 : x
  2. Step 2: Convert to fraction form
    30,854.07/42,578.61 = 16,706.91/x
  3. Step 3: Cross multiply
    30,854.07x = 42,578.61 × 16,706.91
  4. Step 4: Simplify right side
    30,854.07x = 711,357,226.13
  5. Step 5: Solve for x
    x = 711,357,226.13/30,854.07
  6. Step 6: Final answer
    x = 23,055.54

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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.