Home / 30,070.18-45,110.81-12,541.51

Finding the Fourth Proportional to 30,070.18, 45,110.81 and 12,541.51

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Solution

The fourth proportional to 30,070.18, 45,110.81 and 12,541.51 is: 18,814.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,070.18 : 45,110.81 = 12,541.51 : x
  2. Step 2: Convert to fraction form
    30,070.18/45,110.81 = 12,541.51/x
  3. Step 3: Cross multiply
    30,070.18x = 45,110.81 × 12,541.51
  4. Step 4: Simplify right side
    30,070.18x = 565,757,674.72
  5. Step 5: Solve for x
    x = 565,757,674.72/30,070.18
  6. Step 6: Final answer
    x = 18,814.58

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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.