Home / 30,746.64-42,431.34-18,001.08

Finding the Fourth Proportional to 30,746.64, 42,431.34 and 18,001.08

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Solution

The fourth proportional to 30,746.64, 42,431.34 and 18,001.08 is: 24,842.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,746.64 : 42,431.34 = 18,001.08 : x
  2. Step 2: Convert to fraction form
    30,746.64/42,431.34 = 18,001.08/x
  3. Step 3: Cross multiply
    30,746.64x = 42,431.34 × 18,001.08
  4. Step 4: Simplify right side
    30,746.64x = 763,809,945.85
  5. Step 5: Solve for x
    x = 763,809,945.85/30,746.64
  6. Step 6: Final answer
    x = 24,842.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.