Home / 28,310.48-39,056.96-16,980.48

Finding the Fourth Proportional to 28,310.48, 39,056.96 and 16,980.48

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Solution

The fourth proportional to 28,310.48, 39,056.96 and 16,980.48 is: 23,426.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,310.48 : 39,056.96 = 16,980.48 : x
  2. Step 2: Convert to fraction form
    28,310.48/39,056.96 = 16,980.48/x
  3. Step 3: Cross multiply
    28,310.48x = 39,056.96 × 16,980.48
  4. Step 4: Simplify right side
    28,310.48x = 663,205,928.14
  5. Step 5: Solve for x
    x = 663,205,928.14/28,310.48
  6. Step 6: Final answer
    x = 23,426.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.