Home / 21,269.42-29,392.27-15,955.01

Finding the Fourth Proportional to 21,269.42, 29,392.27 and 15,955.01

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Solution

The fourth proportional to 21,269.42, 29,392.27 and 15,955.01 is: 22,048.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,269.42 : 29,392.27 = 15,955.01 : x
  2. Step 2: Convert to fraction form
    21,269.42/29,392.27 = 15,955.01/x
  3. Step 3: Cross multiply
    21,269.42x = 29,392.27 × 15,955.01
  4. Step 4: Simplify right side
    21,269.42x = 468,953,814.81
  5. Step 5: Solve for x
    x = 468,953,814.81/21,269.42
  6. Step 6: Final answer
    x = 22,048.27

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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.