Home / 28,365.91-42,543.37-10,831.57

Finding the Fourth Proportional to 28,365.91, 42,543.37 and 10,831.57

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Solution

The fourth proportional to 28,365.91, 42,543.37 and 10,831.57 is: 16,245.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,365.91 : 42,543.37 = 10,831.57 : x
  2. Step 2: Convert to fraction form
    28,365.91/42,543.37 = 10,831.57/x
  3. Step 3: Cross multiply
    28,365.91x = 42,543.37 × 10,831.57
  4. Step 4: Simplify right side
    28,365.91x = 460,811,490.19
  5. Step 5: Solve for x
    x = 460,811,490.19/28,365.91
  6. Step 6: Final answer
    x = 16,245.26

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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.