Home / 19,157.31-28,711.02-10,723.46

Finding the Fourth Proportional to 19,157.31, 28,711.02 and 10,723.46

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Solution

The fourth proportional to 19,157.31, 28,711.02 and 10,723.46 is: 16,071.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,157.31 : 28,711.02 = 10,723.46 : x
  2. Step 2: Convert to fraction form
    19,157.31/28,711.02 = 10,723.46/x
  3. Step 3: Cross multiply
    19,157.31x = 28,711.02 × 10,723.46
  4. Step 4: Simplify right side
    19,157.31x = 307,881,330.97
  5. Step 5: Solve for x
    x = 307,881,330.97/19,157.31
  6. Step 6: Final answer
    x = 16,071.22

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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.