Home / 19,888.80-29,831.63-11,563.50

Finding the Fourth Proportional to 19,888.80, 29,831.63 and 11,563.50

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Solution

The fourth proportional to 19,888.80, 29,831.63 and 11,563.50 is: 17,344.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,888.80 : 29,831.63 = 11,563.50 : x
  2. Step 2: Convert to fraction form
    19,888.80/29,831.63 = 11,563.50/x
  3. Step 3: Cross multiply
    19,888.80x = 29,831.63 × 11,563.50
  4. Step 4: Simplify right side
    19,888.80x = 344,957,995.69
  5. Step 5: Solve for x
    x = 344,957,995.69/19,888.80
  6. Step 6: Final answer
    x = 17,344.34

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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.