Home / 14,749.79-20,334.80-14,291.15

Finding the Fourth Proportional to 14,749.79, 20,334.80 and 14,291.15

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Solution

The fourth proportional to 14,749.79, 20,334.80 and 14,291.15 is: 19,702.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,749.79 : 20,334.80 = 14,291.15 : x
  2. Step 2: Convert to fraction form
    14,749.79/20,334.80 = 14,291.15/x
  3. Step 3: Cross multiply
    14,749.79x = 20,334.80 × 14,291.15
  4. Step 4: Simplify right side
    14,749.79x = 290,607,503.89
  5. Step 5: Solve for x
    x = 290,607,503.89/14,749.79
  6. Step 6: Final answer
    x = 19,702.49

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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.