Home / 18,342.23-25,312.20-10,385.19

Finding the Fourth Proportional to 18,342.23, 25,312.20 and 10,385.19

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Solution

The fourth proportional to 18,342.23, 25,312.20 and 10,385.19 is: 14,331.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,342.23 : 25,312.20 = 10,385.19 : x
  2. Step 2: Convert to fraction form
    18,342.23/25,312.20 = 10,385.19/x
  3. Step 3: Cross multiply
    18,342.23x = 25,312.20 × 10,385.19
  4. Step 4: Simplify right side
    18,342.23x = 262,872,006.32
  5. Step 5: Solve for x
    x = 262,872,006.32/18,342.23
  6. Step 6: Final answer
    x = 14,331.52

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Half scale
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Double scale
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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.