Home / 21,153.34-29,199.18-14,434.16

Finding the Fourth Proportional to 21,153.34, 29,199.18 and 14,434.16

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Solution

The fourth proportional to 21,153.34, 29,199.18 and 14,434.16 is: 19,924.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,153.34 : 29,199.18 = 14,434.16 : x
  2. Step 2: Convert to fraction form
    21,153.34/29,199.18 = 14,434.16/x
  3. Step 3: Cross multiply
    21,153.34x = 29,199.18 × 14,434.16
  4. Step 4: Simplify right side
    21,153.34x = 421,465,749.43
  5. Step 5: Solve for x
    x = 421,465,749.43/21,153.34
  6. Step 6: Final answer
    x = 19,924.31

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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.