Home / 21,322.08-29,424.36-12,374.76

Finding the Fourth Proportional to 21,322.08, 29,424.36 and 12,374.76

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Solution

The fourth proportional to 21,322.08, 29,424.36 and 12,374.76 is: 17,077.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,322.08 : 29,424.36 = 12,374.76 : x
  2. Step 2: Convert to fraction form
    21,322.08/29,424.36 = 12,374.76/x
  3. Step 3: Cross multiply
    21,322.08x = 29,424.36 × 12,374.76
  4. Step 4: Simplify right side
    21,322.08x = 364,119,393.15
  5. Step 5: Solve for x
    x = 364,119,393.15/21,322.08
  6. Step 6: Final answer
    x = 17,077.10

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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.