Home / 28,574.88-42,688.53-18,497.52

Finding the Fourth Proportional to 28,574.88, 42,688.53 and 18,497.52

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Solution

The fourth proportional to 28,574.88, 42,688.53 and 18,497.52 is: 27,633.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,574.88 : 42,688.53 = 18,497.52 : x
  2. Step 2: Convert to fraction form
    28,574.88/42,688.53 = 18,497.52/x
  3. Step 3: Cross multiply
    28,574.88x = 42,688.53 × 18,497.52
  4. Step 4: Simplify right side
    28,574.88x = 789,631,937.45
  5. Step 5: Solve for x
    x = 789,631,937.45/28,574.88
  6. Step 6: Final answer
    x = 27,633.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.