Home / 21,708.93-32,368.31-19,855.42

Finding the Fourth Proportional to 21,708.93, 32,368.31 and 19,855.42

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Solution

The fourth proportional to 21,708.93, 32,368.31 and 19,855.42 is: 29,604.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,708.93 : 32,368.31 = 19,855.42 : x
  2. Step 2: Convert to fraction form
    21,708.93/32,368.31 = 19,855.42/x
  3. Step 3: Cross multiply
    21,708.93x = 32,368.31 × 19,855.42
  4. Step 4: Simplify right side
    21,708.93x = 642,686,389.74
  5. Step 5: Solve for x
    x = 642,686,389.74/21,708.93
  6. Step 6: Final answer
    x = 29,604.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.