Home / 19,428.51-26,784.18-16,432.32

Finding the Fourth Proportional to 19,428.51, 26,784.18 and 16,432.32

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Solution

The fourth proportional to 19,428.51, 26,784.18 and 16,432.32 is: 22,653.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,428.51 : 26,784.18 = 16,432.32 : x
  2. Step 2: Convert to fraction form
    19,428.51/26,784.18 = 16,432.32/x
  3. Step 3: Cross multiply
    19,428.51x = 26,784.18 × 16,432.32
  4. Step 4: Simplify right side
    19,428.51x = 440,126,216.70
  5. Step 5: Solve for x
    x = 440,126,216.70/19,428.51
  6. Step 6: Final answer
    x = 22,653.63

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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.