Home / 28,363.06-39,138.19-16,430.23

Finding the Fourth Proportional to 28,363.06, 39,138.19 and 16,430.23

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Solution

The fourth proportional to 28,363.06, 39,138.19 and 16,430.23 is: 22,672.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,363.06 : 39,138.19 = 16,430.23 : x
  2. Step 2: Convert to fraction form
    28,363.06/39,138.19 = 16,430.23/x
  3. Step 3: Cross multiply
    28,363.06x = 39,138.19 × 16,430.23
  4. Step 4: Simplify right side
    28,363.06x = 643,049,463.48
  5. Step 5: Solve for x
    x = 643,049,463.48/28,363.06
  6. Step 6: Final answer
    x = 22,672.08

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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.