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Finding the Fourth Proportional to 21,457.72, 32,186.58 and 17,504.72

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Solution

The fourth proportional to 21,457.72, 32,186.58 and 17,504.72 is: 26,257.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,457.72 : 32,186.58 = 17,504.72 : x
  2. Step 2: Convert to fraction form
    21,457.72/32,186.58 = 17,504.72/x
  3. Step 3: Cross multiply
    21,457.72x = 32,186.58 × 17,504.72
  4. Step 4: Simplify right side
    21,457.72x = 563,417,070.66
  5. Step 5: Solve for x
    x = 563,417,070.66/21,457.72
  6. Step 6: Final answer
    x = 26,257.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.