Home / 21,514.34-29,688.38-11,953.52

Finding the Fourth Proportional to 21,514.34, 29,688.38 and 11,953.52

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Solution

The fourth proportional to 21,514.34, 29,688.38 and 11,953.52 is: 16,495.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,514.34 : 29,688.38 = 11,953.52 : x
  2. Step 2: Convert to fraction form
    21,514.34/29,688.38 = 11,953.52/x
  3. Step 3: Cross multiply
    21,514.34x = 29,688.38 × 11,953.52
  4. Step 4: Simplify right side
    21,514.34x = 354,880,644.10
  5. Step 5: Solve for x
    x = 354,880,644.10/21,514.34
  6. Step 6: Final answer
    x = 16,495.07

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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.