Home / 42,712.47-64,082.41-20,527.45

Finding the Fourth Proportional to 42,712.47, 64,082.41 and 20,527.45

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Solution

The fourth proportional to 42,712.47, 64,082.41 and 20,527.45 is: 30,797.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,712.47 : 64,082.41 = 20,527.45 : x
  2. Step 2: Convert to fraction form
    42,712.47/64,082.41 = 20,527.45/x
  3. Step 3: Cross multiply
    42,712.47x = 64,082.41 × 20,527.45
  4. Step 4: Simplify right side
    42,712.47x = 1,315,448,255.63
  5. Step 5: Solve for x
    x = 1,315,448,255.63/42,712.47
  6. Step 6: Final answer
    x = 30,797.76

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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.