Home / 28,268.40-42,402.60-14,444.40

Finding the Fourth Proportional to 28,268.40, 42,402.60 and 14,444.40

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Solution

The fourth proportional to 28,268.40, 42,402.60 and 14,444.40 is: 21,666.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,268.40 : 42,402.60 = 14,444.40 : x
  2. Step 2: Convert to fraction form
    28,268.40/42,402.60 = 14,444.40/x
  3. Step 3: Cross multiply
    28,268.40x = 42,402.60 × 14,444.40
  4. Step 4: Simplify right side
    28,268.40x = 612,480,115.44
  5. Step 5: Solve for x
    x = 612,480,115.44/28,268.40
  6. Step 6: Final answer
    x = 21,666.60

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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.