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Finding the Fourth Proportional to 30,883.80, 46,347.30 and 13,366.20

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Solution

The fourth proportional to 30,883.80, 46,347.30 and 13,366.20 is: 20,058.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,883.80 : 46,347.30 = 13,366.20 : x
  2. Step 2: Convert to fraction form
    30,883.80/46,347.30 = 13,366.20/x
  3. Step 3: Cross multiply
    30,883.80x = 46,347.30 × 13,366.20
  4. Step 4: Simplify right side
    30,883.80x = 619,487,281.26
  5. Step 5: Solve for x
    x = 619,487,281.26/30,883.80
  6. Step 6: Final answer
    x = 20,058.65

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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.