Home / 25,979.47-35,843.51-15,897.40

Finding the Fourth Proportional to 25,979.47, 35,843.51 and 15,897.40

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Solution

The fourth proportional to 25,979.47, 35,843.51 and 15,897.40 is: 21,933.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,979.47 : 35,843.51 = 15,897.40 : x
  2. Step 2: Convert to fraction form
    25,979.47/35,843.51 = 15,897.40/x
  3. Step 3: Cross multiply
    25,979.47x = 35,843.51 × 15,897.40
  4. Step 4: Simplify right side
    25,979.47x = 569,818,566.01
  5. Step 5: Solve for x
    x = 569,818,566.01/25,979.47
  6. Step 6: Final answer
    x = 21,933.42

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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.