Home / 28,830.79-39,789.23-18,077.37

Finding the Fourth Proportional to 28,830.79, 39,789.23 and 18,077.37

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Solution

The fourth proportional to 28,830.79, 39,789.23 and 18,077.37 is: 24,948.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,830.79 : 39,789.23 = 18,077.37 : x
  2. Step 2: Convert to fraction form
    28,830.79/39,789.23 = 18,077.37/x
  3. Step 3: Cross multiply
    28,830.79x = 39,789.23 × 18,077.37
  4. Step 4: Simplify right side
    28,830.79x = 719,284,494.81
  5. Step 5: Solve for x
    x = 719,284,494.81/28,830.79
  6. Step 6: Final answer
    x = 24,948.48

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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.