Home / 23,030.60-31,782.36-13,603.80

Finding the Fourth Proportional to 23,030.60, 31,782.36 and 13,603.80

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Solution

The fourth proportional to 23,030.60, 31,782.36 and 13,603.80 is: 18,773.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,030.60 : 31,782.36 = 13,603.80 : x
  2. Step 2: Convert to fraction form
    23,030.60/31,782.36 = 13,603.80/x
  3. Step 3: Cross multiply
    23,030.60x = 31,782.36 × 13,603.80
  4. Step 4: Simplify right side
    23,030.60x = 432,360,868.97
  5. Step 5: Solve for x
    x = 432,360,868.97/23,030.60
  6. Step 6: Final answer
    x = 18,773.32

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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.