Home / 28,692.20-43,038.33-8,970.86

Finding the Fourth Proportional to 28,692.20, 43,038.33 and 8,970.86

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Solution

The fourth proportional to 28,692.20, 43,038.33 and 8,970.86 is: 13,456.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,692.20 : 43,038.33 = 8,970.86 : x
  2. Step 2: Convert to fraction form
    28,692.20/43,038.33 = 8,970.86/x
  3. Step 3: Cross multiply
    28,692.20x = 43,038.33 × 8,970.86
  4. Step 4: Simplify right side
    28,692.20x = 386,090,833.06
  5. Step 5: Solve for x
    x = 386,090,833.06/28,692.20
  6. Step 6: Final answer
    x = 13,456.30

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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.