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Finding the Fourth Proportional to 26,461.80, 39,692.70 and 14,020.20

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Solution

The fourth proportional to 26,461.80, 39,692.70 and 14,020.20 is: 21,030.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,461.80 : 39,692.70 = 14,020.20 : x
  2. Step 2: Convert to fraction form
    26,461.80/39,692.70 = 14,020.20/x
  3. Step 3: Cross multiply
    26,461.80x = 39,692.70 × 14,020.20
  4. Step 4: Simplify right side
    26,461.80x = 556,499,592.54
  5. Step 5: Solve for x
    x = 556,499,592.54/26,461.80
  6. Step 6: Final answer
    x = 21,030.30

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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.