Home / 30,448.98-45,677.10-12,916.50

Finding the Fourth Proportional to 30,448.98, 45,677.10 and 12,916.50

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Solution

The fourth proportional to 30,448.98, 45,677.10 and 12,916.50 is: 19,376.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,448.98 : 45,677.10 = 12,916.50 : x
  2. Step 2: Convert to fraction form
    30,448.98/45,677.10 = 12,916.50/x
  3. Step 3: Cross multiply
    30,448.98x = 45,677.10 × 12,916.50
  4. Step 4: Simplify right side
    30,448.98x = 589,988,262.15
  5. Step 5: Solve for x
    x = 589,988,262.15/30,448.98
  6. Step 6: Final answer
    x = 19,376.29

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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.