Home / 40,461.28-60,636.08-20,697.76

Finding the Fourth Proportional to 40,461.28, 60,636.08 and 20,697.76

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Solution

The fourth proportional to 40,461.28, 60,636.08 and 20,697.76 is: 31,018.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,461.28 : 60,636.08 = 20,697.76 : x
  2. Step 2: Convert to fraction form
    40,461.28/60,636.08 = 20,697.76/x
  3. Step 3: Cross multiply
    40,461.28x = 60,636.08 × 20,697.76
  4. Step 4: Simplify right side
    40,461.28x = 1,255,031,031.18
  5. Step 5: Solve for x
    x = 1,255,031,031.18/40,461.28
  6. Step 6: Final answer
    x = 31,018.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.