Home / 39,426.10-59,117.55-13,117.30

Finding the Fourth Proportional to 39,426.10, 59,117.55 and 13,117.30

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Solution

The fourth proportional to 39,426.10, 59,117.55 and 13,117.30 is: 19,668.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,426.10 : 59,117.55 = 13,117.30 : x
  2. Step 2: Convert to fraction form
    39,426.10/59,117.55 = 13,117.30/x
  3. Step 3: Cross multiply
    39,426.10x = 59,117.55 × 13,117.30
  4. Step 4: Simplify right side
    39,426.10x = 775,462,638.62
  5. Step 5: Solve for x
    x = 775,462,638.62/39,426.10
  6. Step 6: Final answer
    x = 19,668.76

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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.