Home / 42,566.40-63,852.48-12,986.88

Finding the Fourth Proportional to 42,566.40, 63,852.48 and 12,986.88

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Solution

The fourth proportional to 42,566.40, 63,852.48 and 12,986.88 is: 19,481.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,566.40 : 63,852.48 = 12,986.88 : x
  2. Step 2: Convert to fraction form
    42,566.40/63,852.48 = 12,986.88/x
  3. Step 3: Cross multiply
    42,566.40x = 63,852.48 × 12,986.88
  4. Step 4: Simplify right side
    42,566.40x = 829,244,495.46
  5. Step 5: Solve for x
    x = 829,244,495.46/42,566.40
  6. Step 6: Final answer
    x = 19,481.20

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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.