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Finding the Fourth Proportional to 15,813.40, 23,720.10 and 14,841.40

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Solution

The fourth proportional to 15,813.40, 23,720.10 and 14,841.40 is: 22,262.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,813.40 : 23,720.10 = 14,841.40 : x
  2. Step 2: Convert to fraction form
    15,813.40/23,720.10 = 14,841.40/x
  3. Step 3: Cross multiply
    15,813.40x = 23,720.10 × 14,841.40
  4. Step 4: Simplify right side
    15,813.40x = 352,039,492.14
  5. Step 5: Solve for x
    x = 352,039,492.14/15,813.40
  6. Step 6: Final answer
    x = 22,262.10

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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.