Home / 40,478.84-55,876.17-30,436.44

Finding the Fourth Proportional to 40,478.84, 55,876.17 and 30,436.44

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Solution

The fourth proportional to 40,478.84, 55,876.17 and 30,436.44 is: 42,013.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,478.84 : 55,876.17 = 30,436.44 : x
  2. Step 2: Convert to fraction form
    40,478.84/55,876.17 = 30,436.44/x
  3. Step 3: Cross multiply
    40,478.84x = 55,876.17 × 30,436.44
  4. Step 4: Simplify right side
    40,478.84x = 1,700,671,695.63
  5. Step 5: Solve for x
    x = 1,700,671,695.63/40,478.84
  6. Step 6: Final answer
    x = 42,013.84

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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.