Home / 47,838.90-71,739.18-19,763.28

Finding the Fourth Proportional to 47,838.90, 71,739.18 and 19,763.28

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Solution

The fourth proportional to 47,838.90, 71,739.18 and 19,763.28 is: 29,637.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,838.90 : 71,739.18 = 19,763.28 : x
  2. Step 2: Convert to fraction form
    47,838.90/71,739.18 = 19,763.28/x
  3. Step 3: Cross multiply
    47,838.90x = 71,739.18 × 19,763.28
  4. Step 4: Simplify right side
    47,838.90x = 1,417,801,501.31
  5. Step 5: Solve for x
    x = 1,417,801,501.31/47,838.90
  6. Step 6: Final answer
    x = 29,637.00

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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.