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Finding the Fourth Proportional to 27,999.90, 42,048.45 and 14,877.90

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Solution

The fourth proportional to 27,999.90, 42,048.45 and 14,877.90 is: 22,342.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,999.90 : 42,048.45 = 14,877.90 : x
  2. Step 2: Convert to fraction form
    27,999.90/42,048.45 = 14,877.90/x
  3. Step 3: Cross multiply
    27,999.90x = 42,048.45 × 14,877.90
  4. Step 4: Simplify right side
    27,999.90x = 625,592,634.26
  5. Step 5: Solve for x
    x = 625,592,634.26/27,999.90
  6. Step 6: Final answer
    x = 22,342.67

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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.