Home / 42,831.32-64,203.12-14,742.92

Finding the Fourth Proportional to 42,831.32, 64,203.12 and 14,742.92

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Solution

The fourth proportional to 42,831.32, 64,203.12 and 14,742.92 is: 22,099.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,831.32 : 64,203.12 = 14,742.92 : x
  2. Step 2: Convert to fraction form
    42,831.32/64,203.12 = 14,742.92/x
  3. Step 3: Cross multiply
    42,831.32x = 64,203.12 × 14,742.92
  4. Step 4: Simplify right side
    42,831.32x = 946,541,461.91
  5. Step 5: Solve for x
    x = 946,541,461.91/42,831.32
  6. Step 6: Final answer
    x = 22,099.28

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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.