Home / 19,166.42-28,720.37-12,903.30

Finding the Fourth Proportional to 19,166.42, 28,720.37 and 12,903.30

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Solution

The fourth proportional to 19,166.42, 28,720.37 and 12,903.30 is: 19,335.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,166.42 : 28,720.37 = 12,903.30 : x
  2. Step 2: Convert to fraction form
    19,166.42/28,720.37 = 12,903.30/x
  3. Step 3: Cross multiply
    19,166.42x = 28,720.37 × 12,903.30
  4. Step 4: Simplify right side
    19,166.42x = 370,587,582.48
  5. Step 5: Solve for x
    x = 370,587,582.48/19,166.42
  6. Step 6: Final answer
    x = 19,335.25

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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.