Home / 21,435.62-32,122.80-12,055.95

Finding the Fourth Proportional to 21,435.62, 32,122.80 and 12,055.95

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Solution

The fourth proportional to 21,435.62, 32,122.80 and 12,055.95 is: 18,066.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,435.62 : 32,122.80 = 12,055.95 : x
  2. Step 2: Convert to fraction form
    21,435.62/32,122.80 = 12,055.95/x
  3. Step 3: Cross multiply
    21,435.62x = 32,122.80 × 12,055.95
  4. Step 4: Simplify right side
    21,435.62x = 387,270,870.66
  5. Step 5: Solve for x
    x = 387,270,870.66/21,435.62
  6. Step 6: Final answer
    x = 18,066.70

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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.