Home / 40,638.40-60,959.20-14,339.36

Finding the Fourth Proportional to 40,638.40, 60,959.20 and 14,339.36

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Solution

The fourth proportional to 40,638.40, 60,959.20 and 14,339.36 is: 21,509.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,638.40 : 60,959.20 = 14,339.36 : x
  2. Step 2: Convert to fraction form
    40,638.40/60,959.20 = 14,339.36/x
  3. Step 3: Cross multiply
    40,638.40x = 60,959.20 × 14,339.36
  4. Step 4: Simplify right side
    40,638.40x = 874,115,914.11
  5. Step 5: Solve for x
    x = 874,115,914.11/40,638.40
  6. Step 6: Final answer
    x = 21,509.60

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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.