Home / 28,647.78-42,966.09-14,412.45

Finding the Fourth Proportional to 28,647.78, 42,966.09 and 14,412.45

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Solution

The fourth proportional to 28,647.78, 42,966.09 and 14,412.45 is: 21,615.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,647.78 : 42,966.09 = 14,412.45 : x
  2. Step 2: Convert to fraction form
    28,647.78/42,966.09 = 14,412.45/x
  3. Step 3: Cross multiply
    28,647.78x = 42,966.09 × 14,412.45
  4. Step 4: Simplify right side
    28,647.78x = 619,246,623.82
  5. Step 5: Solve for x
    x = 619,246,623.82/28,647.78
  6. Step 6: Final answer
    x = 21,615.87

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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.