Home / 57,876.51-86,831.21-18,436.67

Finding the Fourth Proportional to 57,876.51, 86,831.21 and 18,436.67

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Solution

The fourth proportional to 57,876.51, 86,831.21 and 18,436.67 is: 27,660.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,876.51 : 86,831.21 = 18,436.67 : x
  2. Step 2: Convert to fraction form
    57,876.51/86,831.21 = 18,436.67/x
  3. Step 3: Cross multiply
    57,876.51x = 86,831.21 × 18,436.67
  4. Step 4: Simplify right side
    57,876.51x = 1,600,878,364.47
  5. Step 5: Solve for x
    x = 1,600,878,364.47/57,876.51
  6. Step 6: Final answer
    x = 27,660.24

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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.