Home / 28,426.40-42,623.60-10,896.80

Finding the Fourth Proportional to 28,426.40, 42,623.60 and 10,896.80

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Solution

The fourth proportional to 28,426.40, 42,623.60 and 10,896.80 is: 16,339.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,426.40 : 42,623.60 = 10,896.80 : x
  2. Step 2: Convert to fraction form
    28,426.40/42,623.60 = 10,896.80/x
  3. Step 3: Cross multiply
    28,426.40x = 42,623.60 × 10,896.80
  4. Step 4: Simplify right side
    28,426.40x = 464,460,844.48
  5. Step 5: Solve for x
    x = 464,460,844.48/28,426.40
  6. Step 6: Final answer
    x = 16,339.07

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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.