Home / 40,421.45-60,630.13-15,459.59

Finding the Fourth Proportional to 40,421.45, 60,630.13 and 15,459.59

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Solution

The fourth proportional to 40,421.45, 60,630.13 and 15,459.59 is: 23,188.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,421.45 : 60,630.13 = 15,459.59 : x
  2. Step 2: Convert to fraction form
    40,421.45/60,630.13 = 15,459.59/x
  3. Step 3: Cross multiply
    40,421.45x = 60,630.13 × 15,459.59
  4. Step 4: Simplify right side
    40,421.45x = 937,316,571.00
  5. Step 5: Solve for x
    x = 937,316,571.00/40,421.45
  6. Step 6: Final answer
    x = 23,188.59

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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.