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Finding the Fourth Proportional to 30,810.80, 46,237.80 and 19,744.40

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Solution

The fourth proportional to 30,810.80, 46,237.80 and 19,744.40 is: 29,630.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,810.80 : 46,237.80 = 19,744.40 : x
  2. Step 2: Convert to fraction form
    30,810.80/46,237.80 = 19,744.40/x
  3. Step 3: Cross multiply
    30,810.80x = 46,237.80 × 19,744.40
  4. Step 4: Simplify right side
    30,810.80x = 912,937,618.32
  5. Step 5: Solve for x
    x = 912,937,618.32/30,810.80
  6. Step 6: Final answer
    x = 29,630.44

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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.