Home / 30,740.40-46,081.08-19,615.68

Finding the Fourth Proportional to 30,740.40, 46,081.08 and 19,615.68

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Solution

The fourth proportional to 30,740.40, 46,081.08 and 19,615.68 is: 29,404.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,740.40 : 46,081.08 = 19,615.68 : x
  2. Step 2: Convert to fraction form
    30,740.40/46,081.08 = 19,615.68/x
  3. Step 3: Cross multiply
    30,740.40x = 46,081.08 × 19,615.68
  4. Step 4: Simplify right side
    30,740.40x = 903,911,719.33
  5. Step 5: Solve for x
    x = 903,911,719.33/30,740.40
  6. Step 6: Final answer
    x = 29,404.68

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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.