Home / 27,807.27-38,373.60-15,870.30

Finding the Fourth Proportional to 27,807.27, 38,373.60 and 15,870.30

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Solution

The fourth proportional to 27,807.27, 38,373.60 and 15,870.30 is: 21,900.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,807.27 : 38,373.60 = 15,870.30 : x
  2. Step 2: Convert to fraction form
    27,807.27/38,373.60 = 15,870.30/x
  3. Step 3: Cross multiply
    27,807.27x = 38,373.60 × 15,870.30
  4. Step 4: Simplify right side
    27,807.27x = 609,000,544.08
  5. Step 5: Solve for x
    x = 609,000,544.08/27,807.27
  6. Step 6: Final answer
    x = 21,900.77

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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.