Home / 25,402.56-35,056.79-15,330.84

Finding the Fourth Proportional to 25,402.56, 35,056.79 and 15,330.84

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Solution

The fourth proportional to 25,402.56, 35,056.79 and 15,330.84 is: 21,157.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,402.56 : 35,056.79 = 15,330.84 : x
  2. Step 2: Convert to fraction form
    25,402.56/35,056.79 = 15,330.84/x
  3. Step 3: Cross multiply
    25,402.56x = 35,056.79 × 15,330.84
  4. Step 4: Simplify right side
    25,402.56x = 537,450,038.40
  5. Step 5: Solve for x
    x = 537,450,038.40/25,402.56
  6. Step 6: Final answer
    x = 21,157.32

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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.