Home / 28,528.68-39,361.68-16,428.66

Finding the Fourth Proportional to 28,528.68, 39,361.68 and 16,428.66

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Solution

The fourth proportional to 28,528.68, 39,361.68 and 16,428.66 is: 22,667.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,528.68 : 39,361.68 = 16,428.66 : x
  2. Step 2: Convert to fraction form
    28,528.68/39,361.68 = 16,428.66/x
  3. Step 3: Cross multiply
    28,528.68x = 39,361.68 × 16,428.66
  4. Step 4: Simplify right side
    28,528.68x = 646,659,657.75
  5. Step 5: Solve for x
    x = 646,659,657.75/28,528.68
  6. Step 6: Final answer
    x = 22,667.00

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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.