Home / 48,486.84-72,730.28-13,426.49

Finding the Fourth Proportional to 48,486.84, 72,730.28 and 13,426.49

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Solution

The fourth proportional to 48,486.84, 72,730.28 and 13,426.49 is: 20,139.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,486.84 : 72,730.28 = 13,426.49 : x
  2. Step 2: Convert to fraction form
    48,486.84/72,730.28 = 13,426.49/x
  3. Step 3: Cross multiply
    48,486.84x = 72,730.28 × 13,426.49
  4. Step 4: Simplify right side
    48,486.84x = 976,512,491.81
  5. Step 5: Solve for x
    x = 976,512,491.81/48,486.84
  6. Step 6: Final answer
    x = 20,139.74

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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.