Home / 40,417.05-55,756.22-31,402.87

Finding the Fourth Proportional to 40,417.05, 55,756.22 and 31,402.87

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Solution

The fourth proportional to 40,417.05, 55,756.22 and 31,402.87 is: 43,320.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,417.05 : 55,756.22 = 31,402.87 : x
  2. Step 2: Convert to fraction form
    40,417.05/55,756.22 = 31,402.87/x
  3. Step 3: Cross multiply
    40,417.05x = 55,756.22 × 31,402.87
  4. Step 4: Simplify right side
    40,417.05x = 1,750,905,031.95
  5. Step 5: Solve for x
    x = 1,750,905,031.95/40,417.05
  6. Step 6: Final answer
    x = 43,320.95

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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.