Home / 40,158.63-55,438.20-28,232.19

Finding the Fourth Proportional to 40,158.63, 55,438.20 and 28,232.19

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Solution

The fourth proportional to 40,158.63, 55,438.20 and 28,232.19 is: 38,973.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,158.63 : 55,438.20 = 28,232.19 : x
  2. Step 2: Convert to fraction form
    40,158.63/55,438.20 = 28,232.19/x
  3. Step 3: Cross multiply
    40,158.63x = 55,438.20 × 28,232.19
  4. Step 4: Simplify right side
    40,158.63x = 1,565,141,795.66
  5. Step 5: Solve for x
    x = 1,565,141,795.66/40,158.63
  6. Step 6: Final answer
    x = 38,973.98

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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.