Home / 28,365.39-42,554.26-8,643.41

Finding the Fourth Proportional to 28,365.39, 42,554.26 and 8,643.41

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Solution

The fourth proportional to 28,365.39, 42,554.26 and 8,643.41 is: 12,967.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,365.39 : 42,554.26 = 8,643.41 : x
  2. Step 2: Convert to fraction form
    28,365.39/42,554.26 = 8,643.41/x
  3. Step 3: Cross multiply
    28,365.39x = 42,554.26 × 8,643.41
  4. Step 4: Simplify right side
    28,365.39x = 367,813,874.04
  5. Step 5: Solve for x
    x = 367,813,874.04/28,365.39
  6. Step 6: Final answer
    x = 12,967.00

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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.