Home / 30,890.25-46,397.37-18,434.58

Finding the Fourth Proportional to 30,890.25, 46,397.37 and 18,434.58

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Solution

The fourth proportional to 30,890.25, 46,397.37 and 18,434.58 is: 27,688.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,890.25 : 46,397.37 = 18,434.58 : x
  2. Step 2: Convert to fraction form
    30,890.25/46,397.37 = 18,434.58/x
  3. Step 3: Cross multiply
    30,890.25x = 46,397.37 × 18,434.58
  4. Step 4: Simplify right side
    30,890.25x = 855,316,029.05
  5. Step 5: Solve for x
    x = 855,316,029.05/30,890.25
  6. Step 6: Final answer
    x = 27,688.87

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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.