Home / 42,860.97-64,293.48-20,692.98

Finding the Fourth Proportional to 42,860.97, 64,293.48 and 20,692.98

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Solution

The fourth proportional to 42,860.97, 64,293.48 and 20,692.98 is: 31,040.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,860.97 : 64,293.48 = 20,692.98 : x
  2. Step 2: Convert to fraction form
    42,860.97/64,293.48 = 20,692.98/x
  3. Step 3: Cross multiply
    42,860.97x = 64,293.48 × 20,692.98
  4. Step 4: Simplify right side
    42,860.97x = 1,330,423,695.77
  5. Step 5: Solve for x
    x = 1,330,423,695.77/42,860.97
  6. Step 6: Final answer
    x = 31,040.45

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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.