Home / 28,278.64-42,415.22-14,233.08

Finding the Fourth Proportional to 28,278.64, 42,415.22 and 14,233.08

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Solution

The fourth proportional to 28,278.64, 42,415.22 and 14,233.08 is: 21,348.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,278.64 : 42,415.22 = 14,233.08 : x
  2. Step 2: Convert to fraction form
    28,278.64/42,415.22 = 14,233.08/x
  3. Step 3: Cross multiply
    28,278.64x = 42,415.22 × 14,233.08
  4. Step 4: Simplify right side
    28,278.64x = 603,699,219.48
  5. Step 5: Solve for x
    x = 603,699,219.48/28,278.64
  6. Step 6: Final answer
    x = 21,348.24

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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.