Home / 25,865.02-38,797.80-20,703.70

Finding the Fourth Proportional to 25,865.02, 38,797.80 and 20,703.70

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Solution

The fourth proportional to 25,865.02, 38,797.80 and 20,703.70 is: 31,055.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,865.02 : 38,797.80 = 20,703.70 : x
  2. Step 2: Convert to fraction form
    25,865.02/38,797.80 = 20,703.70/x
  3. Step 3: Cross multiply
    25,865.02x = 38,797.80 × 20,703.70
  4. Step 4: Simplify right side
    25,865.02x = 803,258,011.86
  5. Step 5: Solve for x
    x = 803,258,011.86/25,865.02
  6. Step 6: Final answer
    x = 31,055.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.