Home / 30,360.90-45,541.35-28,514.10

Finding the Fourth Proportional to 30,360.90, 45,541.35 and 28,514.10

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Solution

The fourth proportional to 30,360.90, 45,541.35 and 28,514.10 is: 42,771.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,360.90 : 45,541.35 = 28,514.10 : x
  2. Step 2: Convert to fraction form
    30,360.90/45,541.35 = 28,514.10/x
  3. Step 3: Cross multiply
    30,360.90x = 45,541.35 × 28,514.10
  4. Step 4: Simplify right side
    30,360.90x = 1,298,570,608.04
  5. Step 5: Solve for x
    x = 1,298,570,608.04/30,360.90
  6. Step 6: Final answer
    x = 42,771.15

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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.