Home / 30,424.12-45,616.65-12,667.08

Finding the Fourth Proportional to 30,424.12, 45,616.65 and 12,667.08

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Solution

The fourth proportional to 30,424.12, 45,616.65 and 12,667.08 is: 18,992.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,424.12 : 45,616.65 = 12,667.08 : x
  2. Step 2: Convert to fraction form
    30,424.12/45,616.65 = 12,667.08/x
  3. Step 3: Cross multiply
    30,424.12x = 45,616.65 × 12,667.08
  4. Step 4: Simplify right side
    30,424.12x = 577,829,754.88
  5. Step 5: Solve for x
    x = 577,829,754.88/30,424.12
  6. Step 6: Final answer
    x = 18,992.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.