Home / 30,307.30-45,460.95-9,247.30

Finding the Fourth Proportional to 30,307.30, 45,460.95 and 9,247.30

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Solution

The fourth proportional to 30,307.30, 45,460.95 and 9,247.30 is: 13,870.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,307.30 : 45,460.95 = 9,247.30 : x
  2. Step 2: Convert to fraction form
    30,307.30/45,460.95 = 9,247.30/x
  3. Step 3: Cross multiply
    30,307.30x = 45,460.95 × 9,247.30
  4. Step 4: Simplify right side
    30,307.30x = 420,391,042.94
  5. Step 5: Solve for x
    x = 420,391,042.94/30,307.30
  6. Step 6: Final answer
    x = 13,870.95

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Double scale
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Similar ratio
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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.