Home / 42,831.09-64,254.47-13,246.92

Finding the Fourth Proportional to 42,831.09, 64,254.47 and 13,246.92

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Solution

The fourth proportional to 42,831.09, 64,254.47 and 13,246.92 is: 19,872.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,831.09 : 64,254.47 = 13,246.92 : x
  2. Step 2: Convert to fraction form
    42,831.09/64,254.47 = 13,246.92/x
  3. Step 3: Cross multiply
    42,831.09x = 64,254.47 × 13,246.92
  4. Step 4: Simplify right side
    42,831.09x = 851,173,757.50
  5. Step 5: Solve for x
    x = 851,173,757.50/42,831.09
  6. Step 6: Final answer
    x = 19,872.80

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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.