Home / 30,634.29-45,957.59-13,989.85

Finding the Fourth Proportional to 30,634.29, 45,957.59 and 13,989.85

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Solution

The fourth proportional to 30,634.29, 45,957.59 and 13,989.85 is: 20,987.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,634.29 : 45,957.59 = 13,989.85 : x
  2. Step 2: Convert to fraction form
    30,634.29/45,957.59 = 13,989.85/x
  3. Step 3: Cross multiply
    30,634.29x = 45,957.59 × 13,989.85
  4. Step 4: Simplify right side
    30,634.29x = 642,939,720.51
  5. Step 5: Solve for x
    x = 642,939,720.51/30,634.29
  6. Step 6: Final answer
    x = 20,987.58

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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.