Home / 47,218.84-70,820.34-13,938.28

Finding the Fourth Proportional to 47,218.84, 70,820.34 and 13,938.28

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Solution

The fourth proportional to 47,218.84, 70,820.34 and 13,938.28 is: 20,905.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,218.84 : 70,820.34 = 13,938.28 : x
  2. Step 2: Convert to fraction form
    47,218.84/70,820.34 = 13,938.28/x
  3. Step 3: Cross multiply
    47,218.84x = 70,820.34 × 13,938.28
  4. Step 4: Simplify right side
    47,218.84x = 987,113,728.62
  5. Step 5: Solve for x
    x = 987,113,728.62/47,218.84
  6. Step 6: Final answer
    x = 20,905.08

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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.