Home / 30,740.56-42,410.76-18,798.16

Finding the Fourth Proportional to 30,740.56, 42,410.76 and 18,798.16

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Solution

The fourth proportional to 30,740.56, 42,410.76 and 18,798.16 is: 25,934.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,740.56 : 42,410.76 = 18,798.16 : x
  2. Step 2: Convert to fraction form
    30,740.56/42,410.76 = 18,798.16/x
  3. Step 3: Cross multiply
    30,740.56x = 42,410.76 × 18,798.16
  4. Step 4: Simplify right side
    30,740.56x = 797,244,252.20
  5. Step 5: Solve for x
    x = 797,244,252.20/30,740.56
  6. Step 6: Final answer
    x = 25,934.60

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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.