Home / 13,390.61-20,085.82-4,030.59

Finding the Fourth Proportional to 13,390.61, 20,085.82 and 4,030.59

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Solution

The fourth proportional to 13,390.61, 20,085.82 and 4,030.59 is: 6,045.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,390.61 : 20,085.82 = 4,030.59 : x
  2. Step 2: Convert to fraction form
    13,390.61/20,085.82 = 4,030.59/x
  3. Step 3: Cross multiply
    13,390.61x = 20,085.82 × 4,030.59
  4. Step 4: Simplify right side
    13,390.61x = 80,957,695.16
  5. Step 5: Solve for x
    x = 80,957,695.16/13,390.61
  6. Step 6: Final answer
    x = 6,045.85

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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.