Home / 26,172.81-39,275.63-13,702.82

Finding the Fourth Proportional to 26,172.81, 39,275.63 and 13,702.82

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Solution

The fourth proportional to 26,172.81, 39,275.63 and 13,702.82 is: 20,562.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,172.81 : 39,275.63 = 13,702.82 : x
  2. Step 2: Convert to fraction form
    26,172.81/39,275.63 = 13,702.82/x
  3. Step 3: Cross multiply
    26,172.81x = 39,275.63 × 13,702.82
  4. Step 4: Simplify right side
    26,172.81x = 538,186,623.38
  5. Step 5: Solve for x
    x = 538,186,623.38/26,172.81
  6. Step 6: Final answer
    x = 20,562.81

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1.5x scale

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.