Home / 28,550.08-42,831.64-15,402.16

Finding the Fourth Proportional to 28,550.08, 42,831.64 and 15,402.16

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Solution

The fourth proportional to 28,550.08, 42,831.64 and 15,402.16 is: 23,106.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,550.08 : 42,831.64 = 15,402.16 : x
  2. Step 2: Convert to fraction form
    28,550.08/42,831.64 = 15,402.16/x
  3. Step 3: Cross multiply
    28,550.08x = 42,831.64 × 15,402.16
  4. Step 4: Simplify right side
    28,550.08x = 659,699,772.34
  5. Step 5: Solve for x
    x = 659,699,772.34/28,550.08
  6. Step 6: Final answer
    x = 23,106.76

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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.