Home / 15,946.80-23,920.20-15,831.60

Finding the Fourth Proportional to 15,946.80, 23,920.20 and 15,831.60

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Solution

The fourth proportional to 15,946.80, 23,920.20 and 15,831.60 is: 23,747.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,946.80 : 23,920.20 = 15,831.60 : x
  2. Step 2: Convert to fraction form
    15,946.80/23,920.20 = 15,831.60/x
  3. Step 3: Cross multiply
    15,946.80x = 23,920.20 × 15,831.60
  4. Step 4: Simplify right side
    15,946.80x = 378,695,038.32
  5. Step 5: Solve for x
    x = 378,695,038.32/15,946.80
  6. Step 6: Final answer
    x = 23,747.40

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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.