Home / 53,153.31-79,732.87-21,558.67

Finding the Fourth Proportional to 53,153.31, 79,732.87 and 21,558.67

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Solution

The fourth proportional to 53,153.31, 79,732.87 and 21,558.67 is: 32,339.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,153.31 : 79,732.87 = 21,558.67 : x
  2. Step 2: Convert to fraction form
    53,153.31/79,732.87 = 21,558.67/x
  3. Step 3: Cross multiply
    53,153.31x = 79,732.87 × 21,558.67
  4. Step 4: Simplify right side
    53,153.31x = 1,718,934,678.25
  5. Step 5: Solve for x
    x = 1,718,934,678.25/53,153.31
  6. Step 6: Final answer
    x = 32,339.19

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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.