Home / 29,407.56-40,583.18-15,978.68

Finding the Fourth Proportional to 29,407.56, 40,583.18 and 15,978.68

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Solution

The fourth proportional to 29,407.56, 40,583.18 and 15,978.68 is: 22,050.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,407.56 : 40,583.18 = 15,978.68 : x
  2. Step 2: Convert to fraction form
    29,407.56/40,583.18 = 15,978.68/x
  3. Step 3: Cross multiply
    29,407.56x = 40,583.18 × 15,978.68
  4. Step 4: Simplify right side
    29,407.56x = 648,465,646.60
  5. Step 5: Solve for x
    x = 648,465,646.60/29,407.56
  6. Step 6: Final answer
    x = 22,050.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.