Home / 28,810.47-39,759.12-16,064.49

Finding the Fourth Proportional to 28,810.47, 39,759.12 and 16,064.49

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Solution

The fourth proportional to 28,810.47, 39,759.12 and 16,064.49 is: 22,169.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,810.47 : 39,759.12 = 16,064.49 : x
  2. Step 2: Convert to fraction form
    28,810.47/39,759.12 = 16,064.49/x
  3. Step 3: Cross multiply
    28,810.47x = 39,759.12 × 16,064.49
  4. Step 4: Simplify right side
    28,810.47x = 638,709,985.65
  5. Step 5: Solve for x
    x = 638,709,985.65/28,810.47
  6. Step 6: Final answer
    x = 22,169.37

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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.