Home / 31,401.39-47,101.43-9,214.28

Finding the Fourth Proportional to 31,401.39, 47,101.43 and 9,214.28

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Solution

The fourth proportional to 31,401.39, 47,101.43 and 9,214.28 is: 13,821.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,401.39 : 47,101.43 = 9,214.28 : x
  2. Step 2: Convert to fraction form
    31,401.39/47,101.43 = 9,214.28/x
  3. Step 3: Cross multiply
    31,401.39x = 47,101.43 × 9,214.28
  4. Step 4: Simplify right side
    31,401.39x = 434,005,482.84
  5. Step 5: Solve for x
    x = 434,005,482.84/31,401.39
  6. Step 6: Final answer
    x = 13,821.22

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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.