Home / 30,043.36-45,068.10-10,319.36

Finding the Fourth Proportional to 30,043.36, 45,068.10 and 10,319.36

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Solution

The fourth proportional to 30,043.36, 45,068.10 and 10,319.36 is: 15,480.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,043.36 : 45,068.10 = 10,319.36 : x
  2. Step 2: Convert to fraction form
    30,043.36/45,068.10 = 10,319.36/x
  3. Step 3: Cross multiply
    30,043.36x = 45,068.10 × 10,319.36
  4. Step 4: Simplify right side
    30,043.36x = 465,073,948.42
  5. Step 5: Solve for x
    x = 465,073,948.42/30,043.36
  6. Step 6: Final answer
    x = 15,480.09

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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.