Home / 21,205.08-31,813.44-9,368.35

Finding the Fourth Proportional to 21,205.08, 31,813.44 and 9,368.35

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Solution

The fourth proportional to 21,205.08, 31,813.44 and 9,368.35 is: 14,055.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,205.08 : 31,813.44 = 9,368.35 : x
  2. Step 2: Convert to fraction form
    21,205.08/31,813.44 = 9,368.35/x
  3. Step 3: Cross multiply
    21,205.08x = 31,813.44 × 9,368.35
  4. Step 4: Simplify right side
    21,205.08x = 298,039,440.62
  5. Step 5: Solve for x
    x = 298,039,440.62/21,205.08
  6. Step 6: Final answer
    x = 14,055.10

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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.