Home / 13,390.43-20,085.54-4,030.40

Finding the Fourth Proportional to 13,390.43, 20,085.54 and 4,030.40

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Solution

The fourth proportional to 13,390.43, 20,085.54 and 4,030.40 is: 6,045.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,390.43 : 20,085.54 = 4,030.40 : x
  2. Step 2: Convert to fraction form
    13,390.43/20,085.54 = 4,030.40/x
  3. Step 3: Cross multiply
    13,390.43x = 20,085.54 × 4,030.40
  4. Step 4: Simplify right side
    13,390.43x = 80,952,795.52
  5. Step 5: Solve for x
    x = 80,952,795.52/13,390.43
  6. Step 6: Final answer
    x = 6,045.57

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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.