Home / 20,479.13-28,263.33-12,526.65

Finding the Fourth Proportional to 20,479.13, 28,263.33 and 12,526.65

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Solution

The fourth proportional to 20,479.13, 28,263.33 and 12,526.65 is: 17,288.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,479.13 : 28,263.33 = 12,526.65 : x
  2. Step 2: Convert to fraction form
    20,479.13/28,263.33 = 12,526.65/x
  3. Step 3: Cross multiply
    20,479.13x = 28,263.33 × 12,526.65
  4. Step 4: Simplify right side
    20,479.13x = 354,044,842.74
  5. Step 5: Solve for x
    x = 354,044,842.74/20,479.13
  6. Step 6: Final answer
    x = 17,288.08

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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.