Home / 47,453.63-65,487.08-30,715.79

Finding the Fourth Proportional to 47,453.63, 65,487.08 and 30,715.79

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Solution

The fourth proportional to 47,453.63, 65,487.08 and 30,715.79 is: 42,388.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,453.63 : 65,487.08 = 30,715.79 : x
  2. Step 2: Convert to fraction form
    47,453.63/65,487.08 = 30,715.79/x
  3. Step 3: Cross multiply
    47,453.63x = 65,487.08 × 30,715.79
  4. Step 4: Simplify right side
    47,453.63x = 2,011,487,146.35
  5. Step 5: Solve for x
    x = 2,011,487,146.35/47,453.63
  6. Step 6: Final answer
    x = 42,388.48

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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.