Home / 28,392.68-39,161.04-18,316.01

Finding the Fourth Proportional to 28,392.68, 39,161.04 and 18,316.01

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Solution

The fourth proportional to 28,392.68, 39,161.04 and 18,316.01 is: 25,262.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,392.68 : 39,161.04 = 18,316.01 : x
  2. Step 2: Convert to fraction form
    28,392.68/39,161.04 = 18,316.01/x
  3. Step 3: Cross multiply
    28,392.68x = 39,161.04 × 18,316.01
  4. Step 4: Simplify right side
    28,392.68x = 717,273,804.45
  5. Step 5: Solve for x
    x = 717,273,804.45/28,392.68
  6. Step 6: Final answer
    x = 25,262.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.