Home / 21,886.48-32,818.38-13,005.64

Finding the Fourth Proportional to 21,886.48, 32,818.38 and 13,005.64

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Solution

The fourth proportional to 21,886.48, 32,818.38 and 13,005.64 is: 19,501.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,886.48 : 32,818.38 = 13,005.64 : x
  2. Step 2: Convert to fraction form
    21,886.48/32,818.38 = 13,005.64/x
  3. Step 3: Cross multiply
    21,886.48x = 32,818.38 × 13,005.64
  4. Step 4: Simplify right side
    21,886.48x = 426,824,035.66
  5. Step 5: Solve for x
    x = 426,824,035.66/21,886.48
  6. Step 6: Final answer
    x = 19,501.72

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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.