Home / 28,185.28-42,278.94-9,465.93

Finding the Fourth Proportional to 28,185.28, 42,278.94 and 9,465.93

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Solution

The fourth proportional to 28,185.28, 42,278.94 and 9,465.93 is: 14,199.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,185.28 : 42,278.94 = 9,465.93 : x
  2. Step 2: Convert to fraction form
    28,185.28/42,278.94 = 9,465.93/x
  3. Step 3: Cross multiply
    28,185.28x = 42,278.94 × 9,465.93
  4. Step 4: Simplify right side
    28,185.28x = 400,209,486.51
  5. Step 5: Solve for x
    x = 400,209,486.51/28,185.28
  6. Step 6: Final answer
    x = 14,199.24

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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.