Home / 28,511.85-39,345.21-16,574.25

Finding the Fourth Proportional to 28,511.85, 39,345.21 and 16,574.25

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Solution

The fourth proportional to 28,511.85, 39,345.21 and 16,574.25 is: 22,871.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,511.85 : 39,345.21 = 16,574.25 : x
  2. Step 2: Convert to fraction form
    28,511.85/39,345.21 = 16,574.25/x
  3. Step 3: Cross multiply
    28,511.85x = 39,345.21 × 16,574.25
  4. Step 4: Simplify right side
    28,511.85x = 652,117,494.39
  5. Step 5: Solve for x
    x = 652,117,494.39/28,511.85
  6. Step 6: Final answer
    x = 22,871.80

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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.