Home / 23,130.19-31,919.76-13,698.14

Finding the Fourth Proportional to 23,130.19, 31,919.76 and 13,698.14

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Solution

The fourth proportional to 23,130.19, 31,919.76 and 13,698.14 is: 18,903.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,130.19 : 31,919.76 = 13,698.14 : x
  2. Step 2: Convert to fraction form
    23,130.19/31,919.76 = 13,698.14/x
  3. Step 3: Cross multiply
    23,130.19x = 31,919.76 × 13,698.14
  4. Step 4: Simplify right side
    23,130.19x = 437,241,272.76
  5. Step 5: Solve for x
    x = 437,241,272.76/23,130.19
  6. Step 6: Final answer
    x = 18,903.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.