Home / 30,619.52-45,890.40-14,821.28

Finding the Fourth Proportional to 30,619.52, 45,890.40 and 14,821.28

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Solution

The fourth proportional to 30,619.52, 45,890.40 and 14,821.28 is: 22,213.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,619.52 : 45,890.40 = 14,821.28 : x
  2. Step 2: Convert to fraction form
    30,619.52/45,890.40 = 14,821.28/x
  3. Step 3: Cross multiply
    30,619.52x = 45,890.40 × 14,821.28
  4. Step 4: Simplify right side
    30,619.52x = 680,154,467.71
  5. Step 5: Solve for x
    x = 680,154,467.71/30,619.52
  6. Step 6: Final answer
    x = 22,213.10

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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.