Home / 30,402.13-45,297.41-28,704.47

Finding the Fourth Proportional to 30,402.13, 45,297.41 and 28,704.47

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Solution

The fourth proportional to 30,402.13, 45,297.41 and 28,704.47 is: 42,768.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,402.13 : 45,297.41 = 28,704.47 : x
  2. Step 2: Convert to fraction form
    30,402.13/45,297.41 = 28,704.47/x
  3. Step 3: Cross multiply
    30,402.13x = 45,297.41 × 28,704.47
  4. Step 4: Simplify right side
    30,402.13x = 1,300,238,146.42
  5. Step 5: Solve for x
    x = 1,300,238,146.42/30,402.13
  6. Step 6: Final answer
    x = 42,768.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.