Home / 30,047.72-45,070.30-17,813.48

Finding the Fourth Proportional to 30,047.72, 45,070.30 and 17,813.48

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Solution

The fourth proportional to 30,047.72, 45,070.30 and 17,813.48 is: 26,719.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,047.72 : 45,070.30 = 17,813.48 : x
  2. Step 2: Convert to fraction form
    30,047.72/45,070.30 = 17,813.48/x
  3. Step 3: Cross multiply
    30,047.72x = 45,070.30 × 17,813.48
  4. Step 4: Simplify right side
    30,047.72x = 802,858,887.64
  5. Step 5: Solve for x
    x = 802,858,887.64/30,047.72
  6. Step 6: Final answer
    x = 26,719.46

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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.