Home / 30,700.62-42,366.51-17,271.90

Finding the Fourth Proportional to 30,700.62, 42,366.51 and 17,271.90

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Solution

The fourth proportional to 30,700.62, 42,366.51 and 17,271.90 is: 23,835.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,700.62 : 42,366.51 = 17,271.90 : x
  2. Step 2: Convert to fraction form
    30,700.62/42,366.51 = 17,271.90/x
  3. Step 3: Cross multiply
    30,700.62x = 42,366.51 × 17,271.90
  4. Step 4: Simplify right side
    30,700.62x = 731,750,124.07
  5. Step 5: Solve for x
    x = 731,750,124.07/30,700.62
  6. Step 6: Final answer
    x = 23,835.03

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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.