Home / 40,915.53-61,384.64-18,710.19

Finding the Fourth Proportional to 40,915.53, 61,384.64 and 18,710.19

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Solution

The fourth proportional to 40,915.53, 61,384.64 and 18,710.19 is: 28,070.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,915.53 : 61,384.64 = 18,710.19 : x
  2. Step 2: Convert to fraction form
    40,915.53/61,384.64 = 18,710.19/x
  3. Step 3: Cross multiply
    40,915.53x = 61,384.64 × 18,710.19
  4. Step 4: Simplify right side
    40,915.53x = 1,148,518,183.93
  5. Step 5: Solve for x
    x = 1,148,518,183.93/40,915.53
  6. Step 6: Final answer
    x = 28,070.47

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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.