Home / 51,820.26-77,730.37-18,538.30

Finding the Fourth Proportional to 51,820.26, 77,730.37 and 18,538.30

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Solution

The fourth proportional to 51,820.26, 77,730.37 and 18,538.30 is: 27,807.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,820.26 : 77,730.37 = 18,538.30 : x
  2. Step 2: Convert to fraction form
    51,820.26/77,730.37 = 18,538.30/x
  3. Step 3: Cross multiply
    51,820.26x = 77,730.37 × 18,538.30
  4. Step 4: Simplify right side
    51,820.26x = 1,440,988,825.48
  5. Step 5: Solve for x
    x = 1,440,988,825.48/51,820.26
  6. Step 6: Final answer
    x = 27,807.44

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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.