Home / 42,561.17-63,852.10-12,979.53

Finding the Fourth Proportional to 42,561.17, 63,852.10 and 12,979.53

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Solution

The fourth proportional to 42,561.17, 63,852.10 and 12,979.53 is: 19,472.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,561.17 : 63,852.10 = 12,979.53 : x
  2. Step 2: Convert to fraction form
    42,561.17/63,852.10 = 12,979.53/x
  3. Step 3: Cross multiply
    42,561.17x = 63,852.10 × 12,979.53
  4. Step 4: Simplify right side
    42,561.17x = 828,770,247.51
  5. Step 5: Solve for x
    x = 828,770,247.51/42,561.17
  6. Step 6: Final answer
    x = 19,472.45

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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.