Home / 30,866.07-42,595.38-16,718.91

Finding the Fourth Proportional to 30,866.07, 42,595.38 and 16,718.91

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Solution

The fourth proportional to 30,866.07, 42,595.38 and 16,718.91 is: 23,072.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,866.07 : 42,595.38 = 16,718.91 : x
  2. Step 2: Convert to fraction form
    30,866.07/42,595.38 = 16,718.91/x
  3. Step 3: Cross multiply
    30,866.07x = 42,595.38 × 16,718.91
  4. Step 4: Simplify right side
    30,866.07x = 712,148,241.04
  5. Step 5: Solve for x
    x = 712,148,241.04/30,866.07
  6. Step 6: Final answer
    x = 23,072.20

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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.