Home / 38,526.76-53,166.75-21,530.99

Finding the Fourth Proportional to 38,526.76, 53,166.75 and 21,530.99

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Solution

The fourth proportional to 38,526.76, 53,166.75 and 21,530.99 is: 29,712.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,526.76 : 53,166.75 = 21,530.99 : x
  2. Step 2: Convert to fraction form
    38,526.76/53,166.75 = 21,530.99/x
  3. Step 3: Cross multiply
    38,526.76x = 53,166.75 × 21,530.99
  4. Step 4: Simplify right side
    38,526.76x = 1,144,732,869.83
  5. Step 5: Solve for x
    x = 1,144,732,869.83/38,526.76
  6. Step 6: Final answer
    x = 29,712.67

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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.