Home / 38,521.58-53,159.13-21,526.07

Finding the Fourth Proportional to 38,521.58, 53,159.13 and 21,526.07

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Solution

The fourth proportional to 38,521.58, 53,159.13 and 21,526.07 is: 29,705.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,521.58 : 53,159.13 = 21,526.07 : x
  2. Step 2: Convert to fraction form
    38,521.58/53,159.13 = 21,526.07/x
  3. Step 3: Cross multiply
    38,521.58x = 53,159.13 × 21,526.07
  4. Step 4: Simplify right side
    38,521.58x = 1,144,307,153.52
  5. Step 5: Solve for x
    x = 1,144,307,153.52/38,521.58
  6. Step 6: Final answer
    x = 29,705.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.