Home / 30,259.70-45,389.55-28,801.70

Finding the Fourth Proportional to 30,259.70, 45,389.55 and 28,801.70

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Solution

The fourth proportional to 30,259.70, 45,389.55 and 28,801.70 is: 43,202.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,259.70 : 45,389.55 = 28,801.70 : x
  2. Step 2: Convert to fraction form
    30,259.70/45,389.55 = 28,801.70/x
  3. Step 3: Cross multiply
    30,259.70x = 45,389.55 × 28,801.70
  4. Step 4: Simplify right side
    30,259.70x = 1,307,296,202.24
  5. Step 5: Solve for x
    x = 1,307,296,202.24/30,259.70
  6. Step 6: Final answer
    x = 43,202.55

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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.