Home / 69,421.12-104,130.76-16,831.08

Finding the Fourth Proportional to 69,421.12, 104,130.76 and 16,831.08

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Solution

The fourth proportional to 69,421.12, 104,130.76 and 16,831.08 is: 25,246.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,421.12 : 104,130.76 = 16,831.08 : x
  2. Step 2: Convert to fraction form
    69,421.12/104,130.76 = 16,831.08/x
  3. Step 3: Cross multiply
    69,421.12x = 104,130.76 × 16,831.08
  4. Step 4: Simplify right side
    69,421.12x = 1,752,633,152.02
  5. Step 5: Solve for x
    x = 1,752,633,152.02/69,421.12
  6. Step 6: Final answer
    x = 25,246.40

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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.