Home / 20,077.90-27,698.61-14,113.47

Finding the Fourth Proportional to 20,077.90, 27,698.61 and 14,113.47

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Solution

The fourth proportional to 20,077.90, 27,698.61 and 14,113.47 is: 19,470.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,077.90 : 27,698.61 = 14,113.47 : x
  2. Step 2: Convert to fraction form
    20,077.90/27,698.61 = 14,113.47/x
  3. Step 3: Cross multiply
    20,077.90x = 27,698.61 × 14,113.47
  4. Step 4: Simplify right side
    20,077.90x = 390,923,501.28
  5. Step 5: Solve for x
    x = 390,923,501.28/20,077.90
  6. Step 6: Final answer
    x = 19,470.34

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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.