Home / 39,430.56-59,155.25-13,135.52

Finding the Fourth Proportional to 39,430.56, 59,155.25 and 13,135.52

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Solution

The fourth proportional to 39,430.56, 59,155.25 and 13,135.52 is: 19,706.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,430.56 : 59,155.25 = 13,135.52 : x
  2. Step 2: Convert to fraction form
    39,430.56/59,155.25 = 13,135.52/x
  3. Step 3: Cross multiply
    39,430.56x = 59,155.25 × 13,135.52
  4. Step 4: Simplify right side
    39,430.56x = 777,034,969.48
  5. Step 5: Solve for x
    x = 777,034,969.48/39,430.56
  6. Step 6: Final answer
    x = 19,706.41

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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.