Home / 21,376.20-32,064.30-13,590.60

Finding the Fourth Proportional to 21,376.20, 32,064.30 and 13,590.60

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Solution

The fourth proportional to 21,376.20, 32,064.30 and 13,590.60 is: 20,385.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,376.20 : 32,064.30 = 13,590.60 : x
  2. Step 2: Convert to fraction form
    21,376.20/32,064.30 = 13,590.60/x
  3. Step 3: Cross multiply
    21,376.20x = 32,064.30 × 13,590.60
  4. Step 4: Simplify right side
    21,376.20x = 435,773,075.58
  5. Step 5: Solve for x
    x = 435,773,075.58/21,376.20
  6. Step 6: Final answer
    x = 20,385.90

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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.