Home / 31,907.72-47,861.60-14,357.05

Finding the Fourth Proportional to 31,907.72, 47,861.60 and 14,357.05

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Solution

The fourth proportional to 31,907.72, 47,861.60 and 14,357.05 is: 21,535.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,907.72 : 47,861.60 = 14,357.05 : x
  2. Step 2: Convert to fraction form
    31,907.72/47,861.60 = 14,357.05/x
  3. Step 3: Cross multiply
    31,907.72x = 47,861.60 × 14,357.05
  4. Step 4: Simplify right side
    31,907.72x = 687,151,192.84
  5. Step 5: Solve for x
    x = 687,151,192.84/31,907.72
  6. Step 6: Final answer
    x = 21,535.58

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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.