Home / 28,913.27-43,338.02-18,913.86

Finding the Fourth Proportional to 28,913.27, 43,338.02 and 18,913.86

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Solution

The fourth proportional to 28,913.27, 43,338.02 and 18,913.86 is: 28,349.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,913.27 : 43,338.02 = 18,913.86 : x
  2. Step 2: Convert to fraction form
    28,913.27/43,338.02 = 18,913.86/x
  3. Step 3: Cross multiply
    28,913.27x = 43,338.02 × 18,913.86
  4. Step 4: Simplify right side
    28,913.27x = 819,689,148.39
  5. Step 5: Solve for x
    x = 819,689,148.39/28,913.27
  6. Step 6: Final answer
    x = 28,349.93

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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.