Home / 47,257.85-70,888.76-21,981.08

Finding the Fourth Proportional to 47,257.85, 70,888.76 and 21,981.08

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Solution

The fourth proportional to 47,257.85, 70,888.76 and 21,981.08 is: 32,972.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,257.85 : 70,888.76 = 21,981.08 : x
  2. Step 2: Convert to fraction form
    47,257.85/70,888.76 = 21,981.08/x
  3. Step 3: Cross multiply
    47,257.85x = 70,888.76 × 21,981.08
  4. Step 4: Simplify right side
    47,257.85x = 1,558,211,504.66
  5. Step 5: Solve for x
    x = 1,558,211,504.66/47,257.85
  6. Step 6: Final answer
    x = 32,972.54

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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.