Home / 30,539.10-45,782.67-13,893.30

Finding the Fourth Proportional to 30,539.10, 45,782.67 and 13,893.30

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Solution

The fourth proportional to 30,539.10, 45,782.67 and 13,893.30 is: 20,828.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,539.10 : 45,782.67 = 13,893.30 : x
  2. Step 2: Convert to fraction form
    30,539.10/45,782.67 = 13,893.30/x
  3. Step 3: Cross multiply
    30,539.10x = 45,782.67 × 13,893.30
  4. Step 4: Simplify right side
    30,539.10x = 636,072,369.11
  5. Step 5: Solve for x
    x = 636,072,369.11/30,539.10
  6. Step 6: Final answer
    x = 20,828.13

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1.5x scale

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.