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Finding the Fourth Proportional to 28,001.69, 42,002.53 and 9,533.69

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Solution

The fourth proportional to 28,001.69, 42,002.53 and 9,533.69 is: 14,300.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,001.69 : 42,002.53 = 9,533.69 : x
  2. Step 2: Convert to fraction form
    28,001.69/42,002.53 = 9,533.69/x
  3. Step 3: Cross multiply
    28,001.69x = 42,002.53 × 9,533.69
  4. Step 4: Simplify right side
    28,001.69x = 400,439,100.24
  5. Step 5: Solve for x
    x = 400,439,100.24/28,001.69
  6. Step 6: Final answer
    x = 14,300.53

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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.