Home / 14,831.60-20,432.40-10,347.20

Finding the Fourth Proportional to 14,831.60, 20,432.40 and 10,347.20

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Solution

The fourth proportional to 14,831.60, 20,432.40 and 10,347.20 is: 14,254.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,831.60 : 20,432.40 = 10,347.20 : x
  2. Step 2: Convert to fraction form
    14,831.60/20,432.40 = 10,347.20/x
  3. Step 3: Cross multiply
    14,831.60x = 20,432.40 × 10,347.20
  4. Step 4: Simplify right side
    14,831.60x = 211,418,129.28
  5. Step 5: Solve for x
    x = 211,418,129.28/14,831.60
  6. Step 6: Final answer
    x = 14,254.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.