Home / 40,909.16-61,364.51-12,828.60

Finding the Fourth Proportional to 40,909.16, 61,364.51 and 12,828.60

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Solution

The fourth proportional to 40,909.16, 61,364.51 and 12,828.60 is: 19,243.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,909.16 : 61,364.51 = 12,828.60 : x
  2. Step 2: Convert to fraction form
    40,909.16/61,364.51 = 12,828.60/x
  3. Step 3: Cross multiply
    40,909.16x = 61,364.51 × 12,828.60
  4. Step 4: Simplify right side
    40,909.16x = 787,220,688.84
  5. Step 5: Solve for x
    x = 787,220,688.84/40,909.16
  6. Step 6: Final answer
    x = 19,243.14

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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.