Home / 30,700.13-42,366.38-17,271.27

Finding the Fourth Proportional to 30,700.13, 42,366.38 and 17,271.27

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Solution

The fourth proportional to 30,700.13, 42,366.38 and 17,271.27 is: 23,834.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,700.13 : 42,366.38 = 17,271.27 : x
  2. Step 2: Convert to fraction form
    30,700.13/42,366.38 = 17,271.27/x
  3. Step 3: Cross multiply
    30,700.13x = 42,366.38 × 17,271.27
  4. Step 4: Simplify right side
    30,700.13x = 731,721,101.55
  5. Step 5: Solve for x
    x = 731,721,101.55/30,700.13
  6. Step 6: Final answer
    x = 23,834.47

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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.