Home / 30,854.09-42,578.67-16,706.90

Finding the Fourth Proportional to 30,854.09, 42,578.67 and 16,706.90

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Solution

The fourth proportional to 30,854.09, 42,578.67 and 16,706.90 is: 23,055.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,854.09 : 42,578.67 = 16,706.90 : x
  2. Step 2: Convert to fraction form
    30,854.09/42,578.67 = 16,706.90/x
  3. Step 3: Cross multiply
    30,854.09x = 42,578.67 × 16,706.90
  4. Step 4: Simplify right side
    30,854.09x = 711,357,368.93
  5. Step 5: Solve for x
    x = 711,357,368.93/30,854.09
  6. Step 6: Final answer
    x = 23,055.53

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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.