Home / 35,640.08-53,459.64-20,942.24

Finding the Fourth Proportional to 35,640.08, 53,459.64 and 20,942.24

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Solution

The fourth proportional to 35,640.08, 53,459.64 and 20,942.24 is: 31,413.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,640.08 : 53,459.64 = 20,942.24 : x
  2. Step 2: Convert to fraction form
    35,640.08/53,459.64 = 20,942.24/x
  3. Step 3: Cross multiply
    35,640.08x = 53,459.64 × 20,942.24
  4. Step 4: Simplify right side
    35,640.08x = 1,119,564,611.19
  5. Step 5: Solve for x
    x = 1,119,564,611.19/35,640.08
  6. Step 6: Final answer
    x = 31,413.08

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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.