Home / 30,919.29-42,666.03-17,487.45

Finding the Fourth Proportional to 30,919.29, 42,666.03 and 17,487.45

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Solution

The fourth proportional to 30,919.29, 42,666.03 and 17,487.45 is: 24,131.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,919.29 : 42,666.03 = 17,487.45 : x
  2. Step 2: Convert to fraction form
    30,919.29/42,666.03 = 17,487.45/x
  3. Step 3: Cross multiply
    30,919.29x = 42,666.03 × 17,487.45
  4. Step 4: Simplify right side
    30,919.29x = 746,120,066.32
  5. Step 5: Solve for x
    x = 746,120,066.32/30,919.29
  6. Step 6: Final answer
    x = 24,131.22

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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.