Home / 25,097.40-34,649.42-15,678.72

Finding the Fourth Proportional to 25,097.40, 34,649.42 and 15,678.72

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Solution

The fourth proportional to 25,097.40, 34,649.42 and 15,678.72 is: 21,646.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,097.40 : 34,649.42 = 15,678.72 : x
  2. Step 2: Convert to fraction form
    25,097.40/34,649.42 = 15,678.72/x
  3. Step 3: Cross multiply
    25,097.40x = 34,649.42 × 15,678.72
  4. Step 4: Simplify right side
    25,097.40x = 543,258,554.34
  5. Step 5: Solve for x
    x = 543,258,554.34/25,097.40
  6. Step 6: Final answer
    x = 21,646.01

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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.