Home / 20,749-28,623.75-14,036.98

Finding the Fourth Proportional to 20,749, 28,623.75 and 14,036.98

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Solution

The fourth proportional to 20,749, 28,623.75 and 14,036.98 is: 19,364.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,749 : 28,623.75 = 14,036.98 : x
  2. Step 2: Convert to fraction form
    20,749/28,623.75 = 14,036.98/x
  3. Step 3: Cross multiply
    20,749x = 28,623.75 × 14,036.98
  4. Step 4: Simplify right side
    20,749x = 401,791,006.28
  5. Step 5: Solve for x
    x = 401,791,006.28/20,749
  6. Step 6: Final answer
    x = 19,364.36

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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.