Home / 40,685.49-61,031.88-14,390.46

Finding the Fourth Proportional to 40,685.49, 61,031.88 and 14,390.46

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Solution

The fourth proportional to 40,685.49, 61,031.88 and 14,390.46 is: 21,586.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,685.49 : 61,031.88 = 14,390.46 : x
  2. Step 2: Convert to fraction form
    40,685.49/61,031.88 = 14,390.46/x
  3. Step 3: Cross multiply
    40,685.49x = 61,031.88 × 14,390.46
  4. Step 4: Simplify right side
    40,685.49x = 878,276,827.86
  5. Step 5: Solve for x
    x = 878,276,827.86/40,685.49
  6. Step 6: Final answer
    x = 21,586.98

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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.