Home / 28,422.51-42,639.93-10,892.36

Finding the Fourth Proportional to 28,422.51, 42,639.93 and 10,892.36

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Solution

The fourth proportional to 28,422.51, 42,639.93 and 10,892.36 is: 16,340.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,422.51 : 42,639.93 = 10,892.36 : x
  2. Step 2: Convert to fraction form
    28,422.51/42,639.93 = 10,892.36/x
  3. Step 3: Cross multiply
    28,422.51x = 42,639.93 × 10,892.36
  4. Step 4: Simplify right side
    28,422.51x = 464,449,254.74
  5. Step 5: Solve for x
    x = 464,449,254.74/28,422.51
  6. Step 6: Final answer
    x = 16,340.90

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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.