Home / 47,511.51-65,506.32-30,485.72

Finding the Fourth Proportional to 47,511.51, 65,506.32 and 30,485.72

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Solution

The fourth proportional to 47,511.51, 65,506.32 and 30,485.72 is: 42,032.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,511.51 : 65,506.32 = 30,485.72 : x
  2. Step 2: Convert to fraction form
    47,511.51/65,506.32 = 30,485.72/x
  3. Step 3: Cross multiply
    47,511.51x = 65,506.32 × 30,485.72
  4. Step 4: Simplify right side
    47,511.51x = 1,997,007,125.04
  5. Step 5: Solve for x
    x = 1,997,007,125.04/47,511.51
  6. Step 6: Final answer
    x = 42,032.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.