Home / 42,561.56-63,869.88-19,186.58

Finding the Fourth Proportional to 42,561.56, 63,869.88 and 19,186.58

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Solution

The fourth proportional to 42,561.56, 63,869.88 and 19,186.58 is: 28,792.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,561.56 : 63,869.88 = 19,186.58 : x
  2. Step 2: Convert to fraction form
    42,561.56/63,869.88 = 19,186.58/x
  3. Step 3: Cross multiply
    42,561.56x = 63,869.88 × 19,186.58
  4. Step 4: Simplify right side
    42,561.56x = 1,225,444,562.21
  5. Step 5: Solve for x
    x = 1,225,444,562.21/42,561.56
  6. Step 6: Final answer
    x = 28,792.28

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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.