Home / 34,785-48,003.36-18,869.40

Finding the Fourth Proportional to 34,785, 48,003.36 and 18,869.40

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Solution

The fourth proportional to 34,785, 48,003.36 and 18,869.40 is: 26,039.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,785 : 48,003.36 = 18,869.40 : x
  2. Step 2: Convert to fraction form
    34,785/48,003.36 = 18,869.40/x
  3. Step 3: Cross multiply
    34,785x = 48,003.36 × 18,869.40
  4. Step 4: Simplify right side
    34,785x = 905,794,601.18
  5. Step 5: Solve for x
    x = 905,794,601.18/34,785
  6. Step 6: Final answer
    x = 26,039.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.