Home / 21,329.63-31,924.73-19,283.42

Finding the Fourth Proportional to 21,329.63, 31,924.73 and 19,283.42

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Solution

The fourth proportional to 21,329.63, 31,924.73 and 19,283.42 is: 28,862.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,329.63 : 31,924.73 = 19,283.42 : x
  2. Step 2: Convert to fraction form
    21,329.63/31,924.73 = 19,283.42/x
  3. Step 3: Cross multiply
    21,329.63x = 31,924.73 × 19,283.42
  4. Step 4: Simplify right side
    21,329.63x = 615,617,925.42
  5. Step 5: Solve for x
    x = 615,617,925.42/21,329.63
  6. Step 6: Final answer
    x = 28,862.10

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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.