Home / 45,291.84-67,915.82-18,989.52

Finding the Fourth Proportional to 45,291.84, 67,915.82 and 18,989.52

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Solution

The fourth proportional to 45,291.84, 67,915.82 and 18,989.52 is: 28,475.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,291.84 : 67,915.82 = 18,989.52 : x
  2. Step 2: Convert to fraction form
    45,291.84/67,915.82 = 18,989.52/x
  3. Step 3: Cross multiply
    45,291.84x = 67,915.82 × 18,989.52
  4. Step 4: Simplify right side
    45,291.84x = 1,289,688,727.26
  5. Step 5: Solve for x
    x = 1,289,688,727.26/45,291.84
  6. Step 6: Final answer
    x = 28,475.08

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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.