Home / 42,577.40-63,868.98-12,997.64

Finding the Fourth Proportional to 42,577.40, 63,868.98 and 12,997.64

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Solution

The fourth proportional to 42,577.40, 63,868.98 and 12,997.64 is: 19,497.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,577.40 : 63,868.98 = 12,997.64 : x
  2. Step 2: Convert to fraction form
    42,577.40/63,868.98 = 12,997.64/x
  3. Step 3: Cross multiply
    42,577.40x = 63,868.98 × 12,997.64
  4. Step 4: Simplify right side
    42,577.40x = 830,146,009.21
  5. Step 5: Solve for x
    x = 830,146,009.21/42,577.40
  6. Step 6: Final answer
    x = 19,497.34

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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.