Home / 21,587.19-32,361.58-8,436.57

Finding the Fourth Proportional to 21,587.19, 32,361.58 and 8,436.57

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Solution

The fourth proportional to 21,587.19, 32,361.58 and 8,436.57 is: 12,647.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,587.19 : 32,361.58 = 8,436.57 : x
  2. Step 2: Convert to fraction form
    21,587.19/32,361.58 = 8,436.57/x
  3. Step 3: Cross multiply
    21,587.19x = 32,361.58 × 8,436.57
  4. Step 4: Simplify right side
    21,587.19x = 273,020,692.80
  5. Step 5: Solve for x
    x = 273,020,692.80/21,587.19
  6. Step 6: Final answer
    x = 12,647.35

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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.