Home / 39,331.78-59,011.34-13,038.57

Finding the Fourth Proportional to 39,331.78, 59,011.34 and 13,038.57

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Solution

The fourth proportional to 39,331.78, 59,011.34 and 13,038.57 is: 19,562.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,331.78 : 59,011.34 = 13,038.57 : x
  2. Step 2: Convert to fraction form
    39,331.78/59,011.34 = 13,038.57/x
  3. Step 3: Cross multiply
    39,331.78x = 59,011.34 × 13,038.57
  4. Step 4: Simplify right side
    39,331.78x = 769,423,422.19
  5. Step 5: Solve for x
    x = 769,423,422.19/39,331.78
  6. Step 6: Final answer
    x = 19,562.39

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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.