Home / 28,139.34-42,214.44-8,416.26

Finding the Fourth Proportional to 28,139.34, 42,214.44 and 8,416.26

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Solution

The fourth proportional to 28,139.34, 42,214.44 and 8,416.26 is: 12,626.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,139.34 : 42,214.44 = 8,416.26 : x
  2. Step 2: Convert to fraction form
    28,139.34/42,214.44 = 8,416.26/x
  3. Step 3: Cross multiply
    28,139.34x = 42,214.44 × 8,416.26
  4. Step 4: Simplify right side
    28,139.34x = 355,287,702.79
  5. Step 5: Solve for x
    x = 355,287,702.79/28,139.34
  6. Step 6: Final answer
    x = 12,626.01

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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.