Home / 20,670.04-28,533.38-13,964.76

Finding the Fourth Proportional to 20,670.04, 28,533.38 and 13,964.76

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Solution

The fourth proportional to 20,670.04, 28,533.38 and 13,964.76 is: 19,277.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,670.04 : 28,533.38 = 13,964.76 : x
  2. Step 2: Convert to fraction form
    20,670.04/28,533.38 = 13,964.76/x
  3. Step 3: Cross multiply
    20,670.04x = 28,533.38 × 13,964.76
  4. Step 4: Simplify right side
    20,670.04x = 398,461,803.69
  5. Step 5: Solve for x
    x = 398,461,803.69/20,670.04
  6. Step 6: Final answer
    x = 19,277.26

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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.