Home / 13,390.30-20,085.35-4,030.28

Finding the Fourth Proportional to 13,390.30, 20,085.35 and 4,030.28

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Solution

The fourth proportional to 13,390.30, 20,085.35 and 4,030.28 is: 6,045.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,390.30 : 20,085.35 = 4,030.28 : x
  2. Step 2: Convert to fraction form
    13,390.30/20,085.35 = 4,030.28/x
  3. Step 3: Cross multiply
    13,390.30x = 20,085.35 × 4,030.28
  4. Step 4: Simplify right side
    13,390.30x = 80,949,514.03
  5. Step 5: Solve for x
    x = 80,949,514.03/13,390.30
  6. Step 6: Final answer
    x = 6,045.38

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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.