Home / 40,887.48-56,431.50-28,129.98

Finding the Fourth Proportional to 40,887.48, 56,431.50 and 28,129.98

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Solution

The fourth proportional to 40,887.48, 56,431.50 and 28,129.98 is: 38,824.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,887.48 : 56,431.50 = 28,129.98 : x
  2. Step 2: Convert to fraction form
    40,887.48/56,431.50 = 28,129.98/x
  3. Step 3: Cross multiply
    40,887.48x = 56,431.50 × 28,129.98
  4. Step 4: Simplify right side
    40,887.48x = 1,587,416,966.37
  5. Step 5: Solve for x
    x = 1,587,416,966.37/40,887.48
  6. Step 6: Final answer
    x = 38,824.04

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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.