Home / 21,036.48-31,554.72-13,225.92

Finding the Fourth Proportional to 21,036.48, 31,554.72 and 13,225.92

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Solution

The fourth proportional to 21,036.48, 31,554.72 and 13,225.92 is: 19,838.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,036.48 : 31,554.72 = 13,225.92 : x
  2. Step 2: Convert to fraction form
    21,036.48/31,554.72 = 13,225.92/x
  3. Step 3: Cross multiply
    21,036.48x = 31,554.72 × 13,225.92
  4. Step 4: Simplify right side
    21,036.48x = 417,340,202.34
  5. Step 5: Solve for x
    x = 417,340,202.34/21,036.48
  6. Step 6: Final answer
    x = 19,838.88

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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.