Home / 25,531.56-35,206.88-15,456.32

Finding the Fourth Proportional to 25,531.56, 35,206.88 and 15,456.32

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Solution

The fourth proportional to 25,531.56, 35,206.88 and 15,456.32 is: 21,313.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,531.56 : 35,206.88 = 15,456.32 : x
  2. Step 2: Convert to fraction form
    25,531.56/35,206.88 = 15,456.32/x
  3. Step 3: Cross multiply
    25,531.56x = 35,206.88 × 15,456.32
  4. Step 4: Simplify right side
    25,531.56x = 544,168,550.17
  5. Step 5: Solve for x
    x = 544,168,550.17/25,531.56
  6. Step 6: Final answer
    x = 21,313.56

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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.