Home / 28,985.56-40,003.80-16,410.28

Finding the Fourth Proportional to 28,985.56, 40,003.80 and 16,410.28

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Solution

The fourth proportional to 28,985.56, 40,003.80 and 16,410.28 is: 22,648.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,985.56 : 40,003.80 = 16,410.28 : x
  2. Step 2: Convert to fraction form
    28,985.56/40,003.80 = 16,410.28/x
  3. Step 3: Cross multiply
    28,985.56x = 40,003.80 × 16,410.28
  4. Step 4: Simplify right side
    28,985.56x = 656,473,559.06
  5. Step 5: Solve for x
    x = 656,473,559.06/28,985.56
  6. Step 6: Final answer
    x = 22,648.30

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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.