Home / 42,831.65-64,254.47-14,744.90

Finding the Fourth Proportional to 42,831.65, 64,254.47 and 14,744.90

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Solution

The fourth proportional to 42,831.65, 64,254.47 and 14,744.90 is: 22,119.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,831.65 : 64,254.47 = 14,744.90 : x
  2. Step 2: Convert to fraction form
    42,831.65/64,254.47 = 14,744.90/x
  3. Step 3: Cross multiply
    42,831.65x = 64,254.47 × 14,744.90
  4. Step 4: Simplify right side
    42,831.65x = 947,425,821.61
  5. Step 5: Solve for x
    x = 947,425,821.61/42,831.65
  6. Step 6: Final answer
    x = 22,119.76

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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.