Home / 39,420.72-59,138.86-14,461.00

Finding the Fourth Proportional to 39,420.72, 59,138.86 and 14,461.00

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Solution

The fourth proportional to 39,420.72, 59,138.86 and 14,461.00 is: 21,694.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,420.72 : 59,138.86 = 14,461.00 : x
  2. Step 2: Convert to fraction form
    39,420.72/59,138.86 = 14,461.00/x
  3. Step 3: Cross multiply
    39,420.72x = 59,138.86 × 14,461.00
  4. Step 4: Simplify right side
    39,420.72x = 855,206,870.46
  5. Step 5: Solve for x
    x = 855,206,870.46/39,420.72
  6. Step 6: Final answer
    x = 21,694.35

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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.