Home / 20,015.48-30,010.74-7,535

Finding the Fourth Proportional to 20,015.48, 30,010.74 and 7,535

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Solution

The fourth proportional to 20,015.48, 30,010.74 and 7,535 is: 11,297.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,015.48 : 30,010.74 = 7,535 : x
  2. Step 2: Convert to fraction form
    20,015.48/30,010.74 = 7,535/x
  3. Step 3: Cross multiply
    20,015.48x = 30,010.74 × 7,535
  4. Step 4: Simplify right side
    20,015.48x = 226,130,925.90
  5. Step 5: Solve for x
    x = 226,130,925.90/20,015.48
  6. Step 6: Final answer
    x = 11,297.80

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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.