Home / 20,317.28-28,038.30-14,359.46

Finding the Fourth Proportional to 20,317.28, 28,038.30 and 14,359.46

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Solution

The fourth proportional to 20,317.28, 28,038.30 and 14,359.46 is: 19,816.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,317.28 : 28,038.30 = 14,359.46 : x
  2. Step 2: Convert to fraction form
    20,317.28/28,038.30 = 14,359.46/x
  3. Step 3: Cross multiply
    20,317.28x = 28,038.30 × 14,359.46
  4. Step 4: Simplify right side
    20,317.28x = 402,614,847.32
  5. Step 5: Solve for x
    x = 402,614,847.32/20,317.28
  6. Step 6: Final answer
    x = 19,816.38

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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.