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Finding the Fourth Proportional to 16,281.10, 24,421.65 and 9,720.10

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Solution

The fourth proportional to 16,281.10, 24,421.65 and 9,720.10 is: 14,580.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,281.10 : 24,421.65 = 9,720.10 : x
  2. Step 2: Convert to fraction form
    16,281.10/24,421.65 = 9,720.10/x
  3. Step 3: Cross multiply
    16,281.10x = 24,421.65 × 9,720.10
  4. Step 4: Simplify right side
    16,281.10x = 237,380,880.17
  5. Step 5: Solve for x
    x = 237,380,880.17/16,281.10
  6. Step 6: Final answer
    x = 14,580.15

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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.