Home / 28,200.27-38,916.36-16,870.25

Finding the Fourth Proportional to 28,200.27, 38,916.36 and 16,870.25

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Solution

The fourth proportional to 28,200.27, 38,916.36 and 16,870.25 is: 23,280.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,200.27 : 38,916.36 = 16,870.25 : x
  2. Step 2: Convert to fraction form
    28,200.27/38,916.36 = 16,870.25/x
  3. Step 3: Cross multiply
    28,200.27x = 38,916.36 × 16,870.25
  4. Step 4: Simplify right side
    28,200.27x = 656,528,527.71
  5. Step 5: Solve for x
    x = 656,528,527.71/28,200.27
  6. Step 6: Final answer
    x = 23,280.93

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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.