Home / 30,223.43-45,326.03-12,689.36

Finding the Fourth Proportional to 30,223.43, 45,326.03 and 12,689.36

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Solution

The fourth proportional to 30,223.43, 45,326.03 and 12,689.36 is: 19,030.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,223.43 : 45,326.03 = 12,689.36 : x
  2. Step 2: Convert to fraction form
    30,223.43/45,326.03 = 12,689.36/x
  3. Step 3: Cross multiply
    30,223.43x = 45,326.03 × 12,689.36
  4. Step 4: Simplify right side
    30,223.43x = 575,158,263.31
  5. Step 5: Solve for x
    x = 575,158,263.31/30,223.43
  6. Step 6: Final answer
    x = 19,030.21

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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.