Home / 40,667.40-56,090.88-28,718.28

Finding the Fourth Proportional to 40,667.40, 56,090.88 and 28,718.28

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Solution

The fourth proportional to 40,667.40, 56,090.88 and 28,718.28 is: 39,609.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,667.40 : 56,090.88 = 28,718.28 : x
  2. Step 2: Convert to fraction form
    40,667.40/56,090.88 = 28,718.28/x
  3. Step 3: Cross multiply
    40,667.40x = 56,090.88 × 28,718.28
  4. Step 4: Simplify right side
    40,667.40x = 1,610,833,597.29
  5. Step 5: Solve for x
    x = 1,610,833,597.29/40,667.40
  6. Step 6: Final answer
    x = 39,609.95

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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.