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Finding the Fourth Proportional to 40,648.80, 60,973.20 and 14,356.20

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Solution

The fourth proportional to 40,648.80, 60,973.20 and 14,356.20 is: 21,534.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,648.80 : 60,973.20 = 14,356.20 : x
  2. Step 2: Convert to fraction form
    40,648.80/60,973.20 = 14,356.20/x
  3. Step 3: Cross multiply
    40,648.80x = 60,973.20 × 14,356.20
  4. Step 4: Simplify right side
    40,648.80x = 875,343,453.84
  5. Step 5: Solve for x
    x = 875,343,453.84/40,648.80
  6. Step 6: Final answer
    x = 21,534.30

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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.