Home / 25,742.90-35,525.58-15,671.76

Finding the Fourth Proportional to 25,742.90, 35,525.58 and 15,671.76

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Solution

The fourth proportional to 25,742.90, 35,525.58 and 15,671.76 is: 21,627.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,742.90 : 35,525.58 = 15,671.76 : x
  2. Step 2: Convert to fraction form
    25,742.90/35,525.58 = 15,671.76/x
  3. Step 3: Cross multiply
    25,742.90x = 35,525.58 × 15,671.76
  4. Step 4: Simplify right side
    25,742.90x = 556,748,363.62
  5. Step 5: Solve for x
    x = 556,748,363.62/25,742.90
  6. Step 6: Final answer
    x = 21,627.26

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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.