Home / 25,130.61-37,696.71-12,643.82

Finding the Fourth Proportional to 25,130.61, 37,696.71 and 12,643.82

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Solution

The fourth proportional to 25,130.61, 37,696.71 and 12,643.82 is: 18,966.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,130.61 : 37,696.71 = 12,643.82 : x
  2. Step 2: Convert to fraction form
    25,130.61/37,696.71 = 12,643.82/x
  3. Step 3: Cross multiply
    25,130.61x = 37,696.71 × 12,643.82
  4. Step 4: Simplify right side
    25,130.61x = 476,630,415.83
  5. Step 5: Solve for x
    x = 476,630,415.83/25,130.61
  6. Step 6: Final answer
    x = 18,966.13

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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.