Home / 42,575.40-63,865.98-12,995.64

Finding the Fourth Proportional to 42,575.40, 63,865.98 and 12,995.64

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Solution

The fourth proportional to 42,575.40, 63,865.98 and 12,995.64 is: 19,494.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,575.40 : 63,865.98 = 12,995.64 : x
  2. Step 2: Convert to fraction form
    42,575.40/63,865.98 = 12,995.64/x
  3. Step 3: Cross multiply
    42,575.40x = 63,865.98 × 12,995.64
  4. Step 4: Simplify right side
    42,575.40x = 829,979,284.33
  5. Step 5: Solve for x
    x = 829,979,284.33/42,575.40
  6. Step 6: Final answer
    x = 19,494.34

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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.