Home / 21,406.38-29,547.64-15,034.50

Finding the Fourth Proportional to 21,406.38, 29,547.64 and 15,034.50

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Solution

The fourth proportional to 21,406.38, 29,547.64 and 15,034.50 is: 20,752.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,406.38 : 29,547.64 = 15,034.50 : x
  2. Step 2: Convert to fraction form
    21,406.38/29,547.64 = 15,034.50/x
  3. Step 3: Cross multiply
    21,406.38x = 29,547.64 × 15,034.50
  4. Step 4: Simplify right side
    21,406.38x = 444,233,993.58
  5. Step 5: Solve for x
    x = 444,233,993.58/21,406.38
  6. Step 6: Final answer
    x = 20,752.41

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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.