Home / 39,421.30-59,141.40-13,126.28

Finding the Fourth Proportional to 39,421.30, 59,141.40 and 13,126.28

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Solution

The fourth proportional to 39,421.30, 59,141.40 and 13,126.28 is: 19,692.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,421.30 : 59,141.40 = 13,126.28 : x
  2. Step 2: Convert to fraction form
    39,421.30/59,141.40 = 13,126.28/x
  3. Step 3: Cross multiply
    39,421.30x = 59,141.40 × 13,126.28
  4. Step 4: Simplify right side
    39,421.30x = 776,306,575.99
  5. Step 5: Solve for x
    x = 776,306,575.99/39,421.30
  6. Step 6: Final answer
    x = 19,692.57

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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.