Home / 25,615.40-35,352.70-15,009.26

Finding the Fourth Proportional to 25,615.40, 35,352.70 and 15,009.26

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Solution

The fourth proportional to 25,615.40, 35,352.70 and 15,009.26 is: 20,714.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,615.40 : 35,352.70 = 15,009.26 : x
  2. Step 2: Convert to fraction form
    25,615.40/35,352.70 = 15,009.26/x
  3. Step 3: Cross multiply
    25,615.40x = 35,352.70 × 15,009.26
  4. Step 4: Simplify right side
    25,615.40x = 530,617,866.00
  5. Step 5: Solve for x
    x = 530,617,866.00/25,615.40
  6. Step 6: Final answer
    x = 20,714.80

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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.