Home / 28,607.07-39,477.25-15,860.19

Finding the Fourth Proportional to 28,607.07, 39,477.25 and 15,860.19

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Solution

The fourth proportional to 28,607.07, 39,477.25 and 15,860.19 is: 21,886.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,607.07 : 39,477.25 = 15,860.19 : x
  2. Step 2: Convert to fraction form
    28,607.07/39,477.25 = 15,860.19/x
  3. Step 3: Cross multiply
    28,607.07x = 39,477.25 × 15,860.19
  4. Step 4: Simplify right side
    28,607.07x = 626,116,685.68
  5. Step 5: Solve for x
    x = 626,116,685.68/28,607.07
  6. Step 6: Final answer
    x = 21,886.78

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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.