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Finding the Fourth Proportional to 30,852.80, 46,279.20 and 30,658.40

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Solution

The fourth proportional to 30,852.80, 46,279.20 and 30,658.40 is: 45,987.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,852.80 : 46,279.20 = 30,658.40 : x
  2. Step 2: Convert to fraction form
    30,852.80/46,279.20 = 30,658.40/x
  3. Step 3: Cross multiply
    30,852.80x = 46,279.20 × 30,658.40
  4. Step 4: Simplify right side
    30,852.80x = 1,418,846,225.28
  5. Step 5: Solve for x
    x = 1,418,846,225.28/30,852.80
  6. Step 6: Final answer
    x = 45,987.60

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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.