Home / 30,820.60-42,532.40-17,394.72

Finding the Fourth Proportional to 30,820.60, 42,532.40 and 17,394.72

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Solution

The fourth proportional to 30,820.60, 42,532.40 and 17,394.72 is: 24,004.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,820.60 : 42,532.40 = 17,394.72 : x
  2. Step 2: Convert to fraction form
    30,820.60/42,532.40 = 17,394.72/x
  3. Step 3: Cross multiply
    30,820.60x = 42,532.40 × 17,394.72
  4. Step 4: Simplify right side
    30,820.60x = 739,839,188.93
  5. Step 5: Solve for x
    x = 739,839,188.93/30,820.60
  6. Step 6: Final answer
    x = 24,004.70

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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.