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Finding the Fourth Proportional to 40,317.40, 60,475.80 and 12,237.40

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Solution

The fourth proportional to 40,317.40, 60,475.80 and 12,237.40 is: 18,356.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,317.40 : 60,475.80 = 12,237.40 : x
  2. Step 2: Convert to fraction form
    40,317.40/60,475.80 = 12,237.40/x
  3. Step 3: Cross multiply
    40,317.40x = 60,475.80 × 12,237.40
  4. Step 4: Simplify right side
    40,317.40x = 740,066,554.92
  5. Step 5: Solve for x
    x = 740,066,554.92/40,317.40
  6. Step 6: Final answer
    x = 18,356.01

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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.