Home / 28,496.40-39,316.32-16,557.45

Finding the Fourth Proportional to 28,496.40, 39,316.32 and 16,557.45

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Solution

The fourth proportional to 28,496.40, 39,316.32 and 16,557.45 is: 22,844.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,496.40 : 39,316.32 = 16,557.45 : x
  2. Step 2: Convert to fraction form
    28,496.40/39,316.32 = 16,557.45/x
  3. Step 3: Cross multiply
    28,496.40x = 39,316.32 × 16,557.45
  4. Step 4: Simplify right side
    28,496.40x = 650,978,002.58
  5. Step 5: Solve for x
    x = 650,978,002.58/28,496.40
  6. Step 6: Final answer
    x = 22,844.22

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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.