Home / 28,578.90-39,438.45-16,004.10

Finding the Fourth Proportional to 28,578.90, 39,438.45 and 16,004.10

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Solution

The fourth proportional to 28,578.90, 39,438.45 and 16,004.10 is: 22,085.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,578.90 : 39,438.45 = 16,004.10 : x
  2. Step 2: Convert to fraction form
    28,578.90/39,438.45 = 16,004.10/x
  3. Step 3: Cross multiply
    28,578.90x = 39,438.45 × 16,004.10
  4. Step 4: Simplify right side
    28,578.90x = 631,176,897.65
  5. Step 5: Solve for x
    x = 631,176,897.65/28,578.90
  6. Step 6: Final answer
    x = 22,085.42

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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.