Home / 25,403.42-35,057.96-15,331.68

Finding the Fourth Proportional to 25,403.42, 35,057.96 and 15,331.68

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Solution

The fourth proportional to 25,403.42, 35,057.96 and 15,331.68 is: 21,158.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,403.42 : 35,057.96 = 15,331.68 : x
  2. Step 2: Convert to fraction form
    25,403.42/35,057.96 = 15,331.68/x
  3. Step 3: Cross multiply
    25,403.42x = 35,057.96 × 15,331.68
  4. Step 4: Simplify right side
    25,403.42x = 537,497,347.51
  5. Step 5: Solve for x
    x = 537,497,347.51/25,403.42
  6. Step 6: Final answer
    x = 21,158.47

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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.