Home / 28,358.04-39,109.46-18,283.26

Finding the Fourth Proportional to 28,358.04, 39,109.46 and 18,283.26

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Solution

The fourth proportional to 28,358.04, 39,109.46 and 18,283.26 is: 25,215.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,358.04 : 39,109.46 = 18,283.26 : x
  2. Step 2: Convert to fraction form
    28,358.04/39,109.46 = 18,283.26/x
  3. Step 3: Cross multiply
    28,358.04x = 39,109.46 × 18,283.26
  4. Step 4: Simplify right side
    28,358.04x = 715,048,334.22
  5. Step 5: Solve for x
    x = 715,048,334.22/28,358.04
  6. Step 6: Final answer
    x = 25,215.01

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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.