Home / 20,837.94-28,726.40-14,859.20

Finding the Fourth Proportional to 20,837.94, 28,726.40 and 14,859.20

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Solution

The fourth proportional to 20,837.94, 28,726.40 and 14,859.20 is: 20,484.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,837.94 : 28,726.40 = 14,859.20 : x
  2. Step 2: Convert to fraction form
    20,837.94/28,726.40 = 14,859.20/x
  3. Step 3: Cross multiply
    20,837.94x = 28,726.40 × 14,859.20
  4. Step 4: Simplify right side
    20,837.94x = 426,851,322.88
  5. Step 5: Solve for x
    x = 426,851,322.88/20,837.94
  6. Step 6: Final answer
    x = 20,484.33

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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.