Home / 28,539.84-39,386.39-16,442.13

Finding the Fourth Proportional to 28,539.84, 39,386.39 and 16,442.13

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Solution

The fourth proportional to 28,539.84, 39,386.39 and 16,442.13 is: 22,690.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,539.84 : 39,386.39 = 16,442.13 : x
  2. Step 2: Convert to fraction form
    28,539.84/39,386.39 = 16,442.13/x
  3. Step 3: Cross multiply
    28,539.84x = 39,386.39 × 16,442.13
  4. Step 4: Simplify right side
    28,539.84x = 647,596,144.61
  5. Step 5: Solve for x
    x = 647,596,144.61/28,539.84
  6. Step 6: Final answer
    x = 22,690.95

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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.