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Finding the Fourth Proportional to 30,482.89, 45,726.36 and 11,763.16

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Solution

The fourth proportional to 30,482.89, 45,726.36 and 11,763.16 is: 17,645.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,482.89 : 45,726.36 = 11,763.16 : x
  2. Step 2: Convert to fraction form
    30,482.89/45,726.36 = 11,763.16/x
  3. Step 3: Cross multiply
    30,482.89x = 45,726.36 × 11,763.16
  4. Step 4: Simplify right side
    30,482.89x = 537,886,488.90
  5. Step 5: Solve for x
    x = 537,886,488.90/30,482.89
  6. Step 6: Final answer
    x = 17,645.52

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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.