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Finding the Fourth Proportional to 19,707.30, 29,560.95 and 9,339.30

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Solution

The fourth proportional to 19,707.30, 29,560.95 and 9,339.30 is: 14,008.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,707.30 : 29,560.95 = 9,339.30 : x
  2. Step 2: Convert to fraction form
    19,707.30/29,560.95 = 9,339.30/x
  3. Step 3: Cross multiply
    19,707.30x = 29,560.95 × 9,339.30
  4. Step 4: Simplify right side
    19,707.30x = 276,078,580.34
  5. Step 5: Solve for x
    x = 276,078,580.34/19,707.30
  6. Step 6: Final answer
    x = 14,008.95

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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.