Home / 40,031.01-55,228.19-30,835.35

Finding the Fourth Proportional to 40,031.01, 55,228.19 and 30,835.35

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Solution

The fourth proportional to 40,031.01, 55,228.19 and 30,835.35 is: 42,541.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,031.01 : 55,228.19 = 30,835.35 : x
  2. Step 2: Convert to fraction form
    40,031.01/55,228.19 = 30,835.35/x
  3. Step 3: Cross multiply
    40,031.01x = 55,228.19 × 30,835.35
  4. Step 4: Simplify right side
    40,031.01x = 1,702,980,414.34
  5. Step 5: Solve for x
    x = 1,702,980,414.34/40,031.01
  6. Step 6: Final answer
    x = 42,541.53

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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.