Home / 30,008.18-45,007.14-12,473.30

Finding the Fourth Proportional to 30,008.18, 45,007.14 and 12,473.30

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Solution

The fourth proportional to 30,008.18, 45,007.14 and 12,473.30 is: 18,707.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,008.18 : 45,007.14 = 12,473.30 : x
  2. Step 2: Convert to fraction form
    30,008.18/45,007.14 = 12,473.30/x
  3. Step 3: Cross multiply
    30,008.18x = 45,007.14 × 12,473.30
  4. Step 4: Simplify right side
    30,008.18x = 561,387,559.36
  5. Step 5: Solve for x
    x = 561,387,559.36/30,008.18
  6. Step 6: Final answer
    x = 18,707.82

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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.