Home / 34,639.84-47,802.18-20,492.92

Finding the Fourth Proportional to 34,639.84, 47,802.18 and 20,492.92

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Solution

The fourth proportional to 34,639.84, 47,802.18 and 20,492.92 is: 28,279.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,639.84 : 47,802.18 = 20,492.92 : x
  2. Step 2: Convert to fraction form
    34,639.84/47,802.18 = 20,492.92/x
  3. Step 3: Cross multiply
    34,639.84x = 47,802.18 × 20,492.92
  4. Step 4: Simplify right side
    34,639.84x = 979,606,250.57
  5. Step 5: Solve for x
    x = 979,606,250.57/34,639.84
  6. Step 6: Final answer
    x = 28,279.76

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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.