Home / 48,615.63-72,929.57-13,555.28

Finding the Fourth Proportional to 48,615.63, 72,929.57 and 13,555.28

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Solution

The fourth proportional to 48,615.63, 72,929.57 and 13,555.28 is: 20,334.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,615.63 : 72,929.57 = 13,555.28 : x
  2. Step 2: Convert to fraction form
    48,615.63/72,929.57 = 13,555.28/x
  3. Step 3: Cross multiply
    48,615.63x = 72,929.57 × 13,555.28
  4. Step 4: Simplify right side
    48,615.63x = 988,580,856.18
  5. Step 5: Solve for x
    x = 988,580,856.18/48,615.63
  6. Step 6: Final answer
    x = 20,334.63

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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.