Home / 30,002.90-45,004.35-9,223.70

Finding the Fourth Proportional to 30,002.90, 45,004.35 and 9,223.70

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Solution

The fourth proportional to 30,002.90, 45,004.35 and 9,223.70 is: 13,835.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,002.90 : 45,004.35 = 9,223.70 : x
  2. Step 2: Convert to fraction form
    30,002.90/45,004.35 = 9,223.70/x
  3. Step 3: Cross multiply
    30,002.90x = 45,004.35 × 9,223.70
  4. Step 4: Simplify right side
    30,002.90x = 415,106,623.10
  5. Step 5: Solve for x
    x = 415,106,623.10/30,002.90
  6. Step 6: Final answer
    x = 13,835.55

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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.