Home / 28,455.64-42,688.04-10,687.63

Finding the Fourth Proportional to 28,455.64, 42,688.04 and 10,687.63

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Solution

The fourth proportional to 28,455.64, 42,688.04 and 10,687.63 is: 16,033.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,455.64 : 42,688.04 = 10,687.63 : x
  2. Step 2: Convert to fraction form
    28,455.64/42,688.04 = 10,687.63/x
  3. Step 3: Cross multiply
    28,455.64x = 42,688.04 × 10,687.63
  4. Step 4: Simplify right side
    28,455.64x = 456,234,106.98
  5. Step 5: Solve for x
    x = 456,234,106.98/28,455.64
  6. Step 6: Final answer
    x = 16,033.17

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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.