Home / 28,643.64-42,959.90-14,408.33

Finding the Fourth Proportional to 28,643.64, 42,959.90 and 14,408.33

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Solution

The fourth proportional to 28,643.64, 42,959.90 and 14,408.33 is: 21,609.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,643.64 : 42,959.90 = 14,408.33 : x
  2. Step 2: Convert to fraction form
    28,643.64/42,959.90 = 14,408.33/x
  3. Step 3: Cross multiply
    28,643.64x = 42,959.90 × 14,408.33
  4. Step 4: Simplify right side
    28,643.64x = 618,980,237.19
  5. Step 5: Solve for x
    x = 618,980,237.19/28,643.64
  6. Step 6: Final answer
    x = 21,609.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.