Home / 40,018.05-60,030.11-11,935.91

Finding the Fourth Proportional to 40,018.05, 60,030.11 and 11,935.91

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Solution

The fourth proportional to 40,018.05, 60,030.11 and 11,935.91 is: 17,904.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,018.05 : 60,030.11 = 11,935.91 : x
  2. Step 2: Convert to fraction form
    40,018.05/60,030.11 = 11,935.91/x
  3. Step 3: Cross multiply
    40,018.05x = 60,030.11 × 11,935.91
  4. Step 4: Simplify right side
    40,018.05x = 716,513,832.50
  5. Step 5: Solve for x
    x = 716,513,832.50/40,018.05
  6. Step 6: Final answer
    x = 17,904.77

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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.