Home / 18,941.16-28,411.68-18,913.80

Finding the Fourth Proportional to 18,941.16, 28,411.68 and 18,913.80

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Solution

The fourth proportional to 18,941.16, 28,411.68 and 18,913.80 is: 28,370.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,941.16 : 28,411.68 = 18,913.80 : x
  2. Step 2: Convert to fraction form
    18,941.16/28,411.68 = 18,913.80/x
  3. Step 3: Cross multiply
    18,941.16x = 28,411.68 × 18,913.80
  4. Step 4: Simplify right side
    18,941.16x = 537,372,833.18
  5. Step 5: Solve for x
    x = 537,372,833.18/18,941.16
  6. Step 6: Final answer
    x = 28,370.64

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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.