Home / 28,694.84-39,582.36-17,920.98

Finding the Fourth Proportional to 28,694.84, 39,582.36 and 17,920.98

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Solution

The fourth proportional to 28,694.84, 39,582.36 and 17,920.98 is: 24,720.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,694.84 : 39,582.36 = 17,920.98 : x
  2. Step 2: Convert to fraction form
    28,694.84/39,582.36 = 17,920.98/x
  3. Step 3: Cross multiply
    28,694.84x = 39,582.36 × 17,920.98
  4. Step 4: Simplify right side
    28,694.84x = 709,354,681.91
  5. Step 5: Solve for x
    x = 709,354,681.91/28,694.84
  6. Step 6: Final answer
    x = 24,720.64

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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.