Home / 30,528.82-45,714.37-21,070.34

Finding the Fourth Proportional to 30,528.82, 45,714.37 and 21,070.34

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Solution

The fourth proportional to 30,528.82, 45,714.37 and 21,070.34 is: 31,551.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,528.82 : 45,714.37 = 21,070.34 : x
  2. Step 2: Convert to fraction form
    30,528.82/45,714.37 = 21,070.34/x
  3. Step 3: Cross multiply
    30,528.82x = 45,714.37 × 21,070.34
  4. Step 4: Simplify right side
    30,528.82x = 963,217,090.21
  5. Step 5: Solve for x
    x = 963,217,090.21/30,528.82
  6. Step 6: Final answer
    x = 31,551.08

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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.