Home / 28,607.90-39,480.26-17,859.14

Finding the Fourth Proportional to 28,607.90, 39,480.26 and 17,859.14

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Solution

The fourth proportional to 28,607.90, 39,480.26 and 17,859.14 is: 24,646.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,607.90 : 39,480.26 = 17,859.14 : x
  2. Step 2: Convert to fraction form
    28,607.90/39,480.26 = 17,859.14/x
  3. Step 3: Cross multiply
    28,607.90x = 39,480.26 × 17,859.14
  4. Step 4: Simplify right side
    28,607.90x = 705,083,490.58
  5. Step 5: Solve for x
    x = 705,083,490.58/28,607.90
  6. Step 6: Final answer
    x = 24,646.46

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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.