Home / 42,695.02-64,022.02-20,186.95

Finding the Fourth Proportional to 42,695.02, 64,022.02 and 20,186.95

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Solution

The fourth proportional to 42,695.02, 64,022.02 and 20,186.95 is: 30,270.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,695.02 : 64,022.02 = 20,186.95 : x
  2. Step 2: Convert to fraction form
    42,695.02/64,022.02 = 20,186.95/x
  3. Step 3: Cross multiply
    42,695.02x = 64,022.02 × 20,186.95
  4. Step 4: Simplify right side
    42,695.02x = 1,292,409,102.87
  5. Step 5: Solve for x
    x = 1,292,409,102.87/42,695.02
  6. Step 6: Final answer
    x = 30,270.72

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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.