Home / 30,859.20-42,585.72-17,430.48

Finding the Fourth Proportional to 30,859.20, 42,585.72 and 17,430.48

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Solution

The fourth proportional to 30,859.20, 42,585.72 and 17,430.48 is: 24,054.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,859.20 : 42,585.72 = 17,430.48 : x
  2. Step 2: Convert to fraction form
    30,859.20/42,585.72 = 17,430.48/x
  3. Step 3: Cross multiply
    30,859.20x = 42,585.72 × 17,430.48
  4. Step 4: Simplify right side
    30,859.20x = 742,289,540.75
  5. Step 5: Solve for x
    x = 742,289,540.75/30,859.20
  6. Step 6: Final answer
    x = 24,054.08

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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.