Home / 20,376.96-30,510.56-13,339.52

Finding the Fourth Proportional to 20,376.96, 30,510.56 and 13,339.52

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Solution

The fourth proportional to 20,376.96, 30,510.56 and 13,339.52 is: 19,973.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,376.96 : 30,510.56 = 13,339.52 : x
  2. Step 2: Convert to fraction form
    20,376.96/30,510.56 = 13,339.52/x
  3. Step 3: Cross multiply
    20,376.96x = 30,510.56 × 13,339.52
  4. Step 4: Simplify right side
    20,376.96x = 406,996,225.33
  5. Step 5: Solve for x
    x = 406,996,225.33/20,376.96
  6. Step 6: Final answer
    x = 19,973.35

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1.5x scale

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.