Home / 47,715.75-65,853.81-28,853.01

Finding the Fourth Proportional to 47,715.75, 65,853.81 and 28,853.01

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Solution

The fourth proportional to 47,715.75, 65,853.81 and 28,853.01 is: 39,820.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,715.75 : 65,853.81 = 28,853.01 : x
  2. Step 2: Convert to fraction form
    47,715.75/65,853.81 = 28,853.01/x
  3. Step 3: Cross multiply
    47,715.75x = 65,853.81 × 28,853.01
  4. Step 4: Simplify right side
    47,715.75x = 1,900,080,638.47
  5. Step 5: Solve for x
    x = 1,900,080,638.47/47,715.75
  6. Step 6: Final answer
    x = 39,820.83

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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.