Home / 42,315.54-63,478.77-14,223.48

Finding the Fourth Proportional to 42,315.54, 63,478.77 and 14,223.48

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Solution

The fourth proportional to 42,315.54, 63,478.77 and 14,223.48 is: 21,337.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,315.54 : 63,478.77 = 14,223.48 : x
  2. Step 2: Convert to fraction form
    42,315.54/63,478.77 = 14,223.48/x
  3. Step 3: Cross multiply
    42,315.54x = 63,478.77 × 14,223.48
  4. Step 4: Simplify right side
    42,315.54x = 902,889,015.52
  5. Step 5: Solve for x
    x = 902,889,015.52/42,315.54
  6. Step 6: Final answer
    x = 21,337.06

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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.