Home / 28,620.18-39,547.17-22,379.94

Finding the Fourth Proportional to 28,620.18, 39,547.17 and 22,379.94

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Solution

The fourth proportional to 28,620.18, 39,547.17 and 22,379.94 is: 30,924.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,620.18 : 39,547.17 = 22,379.94 : x
  2. Step 2: Convert to fraction form
    28,620.18/39,547.17 = 22,379.94/x
  3. Step 3: Cross multiply
    28,620.18x = 39,547.17 × 22,379.94
  4. Step 4: Simplify right side
    28,620.18x = 885,063,291.77
  5. Step 5: Solve for x
    x = 885,063,291.77/28,620.18
  6. Step 6: Final answer
    x = 30,924.45

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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.