Home / 29,307.42-40,444.10-15,878.63

Finding the Fourth Proportional to 29,307.42, 40,444.10 and 15,878.63

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Solution

The fourth proportional to 29,307.42, 40,444.10 and 15,878.63 is: 21,912.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,307.42 : 40,444.10 = 15,878.63 : x
  2. Step 2: Convert to fraction form
    29,307.42/40,444.10 = 15,878.63/x
  3. Step 3: Cross multiply
    29,307.42x = 40,444.10 × 15,878.63
  4. Step 4: Simplify right side
    29,307.42x = 642,196,899.58
  5. Step 5: Solve for x
    x = 642,196,899.58/29,307.42
  6. Step 6: Final answer
    x = 21,912.43

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Double scale
Find fourth proportional to 29,308.42, 40,445.48 and 15,879.63
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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.