Home / 34,785.81-48,004.38-18,870.12

Finding the Fourth Proportional to 34,785.81, 48,004.38 and 18,870.12

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Solution

The fourth proportional to 34,785.81, 48,004.38 and 18,870.12 is: 26,040.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,785.81 : 48,004.38 = 18,870.12 : x
  2. Step 2: Convert to fraction form
    34,785.81/48,004.38 = 18,870.12/x
  3. Step 3: Cross multiply
    34,785.81x = 48,004.38 × 18,870.12
  4. Step 4: Simplify right side
    34,785.81x = 905,848,411.13
  5. Step 5: Solve for x
    x = 905,848,411.13/34,785.81
  6. Step 6: Final answer
    x = 26,040.75

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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.