Home / 28,071.40-42,107.10-16,844.80

Finding the Fourth Proportional to 28,071.40, 42,107.10 and 16,844.80

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Solution

The fourth proportional to 28,071.40, 42,107.10 and 16,844.80 is: 25,267.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,071.40 : 42,107.10 = 16,844.80 : x
  2. Step 2: Convert to fraction form
    28,071.40/42,107.10 = 16,844.80/x
  3. Step 3: Cross multiply
    28,071.40x = 42,107.10 × 16,844.80
  4. Step 4: Simplify right side
    28,071.40x = 709,285,678.08
  5. Step 5: Solve for x
    x = 709,285,678.08/28,071.40
  6. Step 6: Final answer
    x = 25,267.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.