Home / 40,017.76-55,065.14-38,800.32

Finding the Fourth Proportional to 40,017.76, 55,065.14 and 38,800.32

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Solution

The fourth proportional to 40,017.76, 55,065.14 and 38,800.32 is: 53,389.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,017.76 : 55,065.14 = 38,800.32 : x
  2. Step 2: Convert to fraction form
    40,017.76/55,065.14 = 38,800.32/x
  3. Step 3: Cross multiply
    40,017.76x = 55,065.14 × 38,800.32
  4. Step 4: Simplify right side
    40,017.76x = 2,136,545,052.84
  5. Step 5: Solve for x
    x = 2,136,545,052.84/40,017.76
  6. Step 6: Final answer
    x = 53,389.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.