Home / 30,838.61-42,558.06-18,908.52

Finding the Fourth Proportional to 30,838.61, 42,558.06 and 18,908.52

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Solution

The fourth proportional to 30,838.61, 42,558.06 and 18,908.52 is: 26,094.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,838.61 : 42,558.06 = 18,908.52 : x
  2. Step 2: Convert to fraction form
    30,838.61/42,558.06 = 18,908.52/x
  3. Step 3: Cross multiply
    30,838.61x = 42,558.06 × 18,908.52
  4. Step 4: Simplify right side
    30,838.61x = 804,709,928.67
  5. Step 5: Solve for x
    x = 804,709,928.67/30,838.61
  6. Step 6: Final answer
    x = 26,094.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.