Home / 47,490.08-71,215.65-21,176.84

Finding the Fourth Proportional to 47,490.08, 71,215.65 and 21,176.84

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Solution

The fourth proportional to 47,490.08, 71,215.65 and 21,176.84 is: 31,756.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,490.08 : 71,215.65 = 21,176.84 : x
  2. Step 2: Convert to fraction form
    47,490.08/71,215.65 = 21,176.84/x
  3. Step 3: Cross multiply
    47,490.08x = 71,215.65 × 21,176.84
  4. Step 4: Simplify right side
    47,490.08x = 1,508,122,425.55
  5. Step 5: Solve for x
    x = 1,508,122,425.55/47,490.08
  6. Step 6: Final answer
    x = 31,756.58

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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.