Home / 27,987.48-38,621.54-16,042.28

Finding the Fourth Proportional to 27,987.48, 38,621.54 and 16,042.28

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Solution

The fourth proportional to 27,987.48, 38,621.54 and 16,042.28 is: 22,137.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,987.48 : 38,621.54 = 16,042.28 : x
  2. Step 2: Convert to fraction form
    27,987.48/38,621.54 = 16,042.28/x
  3. Step 3: Cross multiply
    27,987.48x = 38,621.54 × 16,042.28
  4. Step 4: Simplify right side
    27,987.48x = 619,577,558.71
  5. Step 5: Solve for x
    x = 619,577,558.71/27,987.48
  6. Step 6: Final answer
    x = 22,137.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.