Home / 39,021.36-58,545.18-12,371.70

Finding the Fourth Proportional to 39,021.36, 58,545.18 and 12,371.70

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Solution

The fourth proportional to 39,021.36, 58,545.18 and 12,371.70 is: 18,561.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,021.36 : 58,545.18 = 12,371.70 : x
  2. Step 2: Convert to fraction form
    39,021.36/58,545.18 = 12,371.70/x
  3. Step 3: Cross multiply
    39,021.36x = 58,545.18 × 12,371.70
  4. Step 4: Simplify right side
    39,021.36x = 724,303,403.41
  5. Step 5: Solve for x
    x = 724,303,403.41/39,021.36
  6. Step 6: Final answer
    x = 18,561.72

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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.