Home / 30,130.88-45,137.48-14,313.39

Finding the Fourth Proportional to 30,130.88, 45,137.48 and 14,313.39

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Solution

The fourth proportional to 30,130.88, 45,137.48 and 14,313.39 is: 21,442.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,130.88 : 45,137.48 = 14,313.39 : x
  2. Step 2: Convert to fraction form
    30,130.88/45,137.48 = 14,313.39/x
  3. Step 3: Cross multiply
    30,130.88x = 45,137.48 × 14,313.39
  4. Step 4: Simplify right side
    30,130.88x = 646,070,283.29
  5. Step 5: Solve for x
    x = 646,070,283.29/30,130.88
  6. Step 6: Final answer
    x = 21,442.13

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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.