Home / 30,017.36-45,000.78-14,213.24

Finding the Fourth Proportional to 30,017.36, 45,000.78 and 14,213.24

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Solution

The fourth proportional to 30,017.36, 45,000.78 and 14,213.24 is: 21,307.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,017.36 : 45,000.78 = 14,213.24 : x
  2. Step 2: Convert to fraction form
    30,017.36/45,000.78 = 14,213.24/x
  3. Step 3: Cross multiply
    30,017.36x = 45,000.78 × 14,213.24
  4. Step 4: Simplify right side
    30,017.36x = 639,606,886.33
  5. Step 5: Solve for x
    x = 639,606,886.33/30,017.36
  6. Step 6: Final answer
    x = 21,307.90

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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.