Home / 17,621.40-26,432.10-15,432.60

Finding the Fourth Proportional to 17,621.40, 26,432.10 and 15,432.60

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Solution

The fourth proportional to 17,621.40, 26,432.10 and 15,432.60 is: 23,148.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,621.40 : 26,432.10 = 15,432.60 : x
  2. Step 2: Convert to fraction form
    17,621.40/26,432.10 = 15,432.60/x
  3. Step 3: Cross multiply
    17,621.40x = 26,432.10 × 15,432.60
  4. Step 4: Simplify right side
    17,621.40x = 407,916,026.46
  5. Step 5: Solve for x
    x = 407,916,026.46/17,621.40
  6. Step 6: Final answer
    x = 23,148.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.