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Finding the Fourth Proportional to 17,368.80, 26,014.80 and 13,442.40

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Solution

The fourth proportional to 17,368.80, 26,014.80 and 13,442.40 is: 20,133.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,368.80 : 26,014.80 = 13,442.40 : x
  2. Step 2: Convert to fraction form
    17,368.80/26,014.80 = 13,442.40/x
  3. Step 3: Cross multiply
    17,368.80x = 26,014.80 × 13,442.40
  4. Step 4: Simplify right side
    17,368.80x = 349,701,347.52
  5. Step 5: Solve for x
    x = 349,701,347.52/17,368.80
  6. Step 6: Final answer
    x = 20,133.88

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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.