Home / 27,398.64-37,770.84-18,430.32

Finding the Fourth Proportional to 27,398.64, 37,770.84 and 18,430.32

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Solution

The fourth proportional to 27,398.64, 37,770.84 and 18,430.32 is: 25,407.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,398.64 : 37,770.84 = 18,430.32 : x
  2. Step 2: Convert to fraction form
    27,398.64/37,770.84 = 18,430.32/x
  3. Step 3: Cross multiply
    27,398.64x = 37,770.84 × 18,430.32
  4. Step 4: Simplify right side
    27,398.64x = 696,128,667.87
  5. Step 5: Solve for x
    x = 696,128,667.87/27,398.64
  6. Step 6: Final answer
    x = 25,407.42

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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.