Home / 39,000.78-58,501.26-12,707.57

Finding the Fourth Proportional to 39,000.78, 58,501.26 and 12,707.57

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Solution

The fourth proportional to 39,000.78, 58,501.26 and 12,707.57 is: 19,061.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,000.78 : 58,501.26 = 12,707.57 : x
  2. Step 2: Convert to fraction form
    39,000.78/58,501.26 = 12,707.57/x
  3. Step 3: Cross multiply
    39,000.78x = 58,501.26 × 12,707.57
  4. Step 4: Simplify right side
    39,000.78x = 743,408,856.54
  5. Step 5: Solve for x
    x = 743,408,856.54/39,000.78
  6. Step 6: Final answer
    x = 19,061.38

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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.