Home / 28,095.51-42,139.49-8,370.39

Finding the Fourth Proportional to 28,095.51, 42,139.49 and 8,370.39

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Solution

The fourth proportional to 28,095.51, 42,139.49 and 8,370.39 is: 12,554.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,095.51 : 42,139.49 = 8,370.39 : x
  2. Step 2: Convert to fraction form
    28,095.51/42,139.49 = 8,370.39/x
  3. Step 3: Cross multiply
    28,095.51x = 42,139.49 × 8,370.39
  4. Step 4: Simplify right side
    28,095.51x = 352,723,923.85
  5. Step 5: Solve for x
    x = 352,723,923.85/28,095.51
  6. Step 6: Final answer
    x = 12,554.46

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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.