Home / 19,432.40-26,815.92-11,477.20

Finding the Fourth Proportional to 19,432.40, 26,815.92 and 11,477.20

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Solution

The fourth proportional to 19,432.40, 26,815.92 and 11,477.20 is: 15,838.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,432.40 : 26,815.92 = 11,477.20 : x
  2. Step 2: Convert to fraction form
    19,432.40/26,815.92 = 11,477.20/x
  3. Step 3: Cross multiply
    19,432.40x = 26,815.92 × 11,477.20
  4. Step 4: Simplify right side
    19,432.40x = 307,771,677.02
  5. Step 5: Solve for x
    x = 307,771,677.02/19,432.40
  6. Step 6: Final answer
    x = 15,838.07

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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.