Home / 20,875.01-28,807.53-11,314.99

Finding the Fourth Proportional to 20,875.01, 28,807.53 and 11,314.99

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Solution

The fourth proportional to 20,875.01, 28,807.53 and 11,314.99 is: 15,614.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,875.01 : 28,807.53 = 11,314.99 : x
  2. Step 2: Convert to fraction form
    20,875.01/28,807.53 = 11,314.99/x
  3. Step 3: Cross multiply
    20,875.01x = 28,807.53 × 11,314.99
  4. Step 4: Simplify right side
    20,875.01x = 325,956,841.86
  5. Step 5: Solve for x
    x = 325,956,841.86/20,875.01
  6. Step 6: Final answer
    x = 15,614.69

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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.