Home / 45,009.84-67,518.25-13,417.49

Finding the Fourth Proportional to 45,009.84, 67,518.25 and 13,417.49

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Solution

The fourth proportional to 45,009.84, 67,518.25 and 13,417.49 is: 20,127.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,009.84 : 67,518.25 = 13,417.49 : x
  2. Step 2: Convert to fraction form
    45,009.84/67,518.25 = 13,417.49/x
  3. Step 3: Cross multiply
    45,009.84x = 67,518.25 × 13,417.49
  4. Step 4: Simplify right side
    45,009.84x = 905,925,579.44
  5. Step 5: Solve for x
    x = 905,925,579.44/45,009.84
  6. Step 6: Final answer
    x = 20,127.28

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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.