Home / 30,519.15-42,112.74-17,089.35

Finding the Fourth Proportional to 30,519.15, 42,112.74 and 17,089.35

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Solution

The fourth proportional to 30,519.15, 42,112.74 and 17,089.35 is: 23,581.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,519.15 : 42,112.74 = 17,089.35 : x
  2. Step 2: Convert to fraction form
    30,519.15/42,112.74 = 17,089.35/x
  3. Step 3: Cross multiply
    30,519.15x = 42,112.74 × 17,089.35
  4. Step 4: Simplify right side
    30,519.15x = 719,679,353.32
  5. Step 5: Solve for x
    x = 719,679,353.32/30,519.15
  6. Step 6: Final answer
    x = 23,581.24

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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.