Home / 42,719.04-64,066.44-17,728.17

Finding the Fourth Proportional to 42,719.04, 64,066.44 and 17,728.17

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Solution

The fourth proportional to 42,719.04, 64,066.44 and 17,728.17 is: 26,587.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,719.04 : 64,066.44 = 17,728.17 : x
  2. Step 2: Convert to fraction form
    42,719.04/64,066.44 = 17,728.17/x
  3. Step 3: Cross multiply
    42,719.04x = 64,066.44 × 17,728.17
  4. Step 4: Simplify right side
    42,719.04x = 1,135,780,739.61
  5. Step 5: Solve for x
    x = 1,135,780,739.61/42,719.04
  6. Step 6: Final answer
    x = 26,587.23

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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.