Home / 21,065.32-29,068.95-12,577.03

Finding the Fourth Proportional to 21,065.32, 29,068.95 and 12,577.03

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Solution

The fourth proportional to 21,065.32, 29,068.95 and 12,577.03 is: 17,355.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,065.32 : 29,068.95 = 12,577.03 : x
  2. Step 2: Convert to fraction form
    21,065.32/29,068.95 = 12,577.03/x
  3. Step 3: Cross multiply
    21,065.32x = 29,068.95 × 12,577.03
  4. Step 4: Simplify right side
    21,065.32x = 365,601,056.22
  5. Step 5: Solve for x
    x = 365,601,056.22/21,065.32
  6. Step 6: Final answer
    x = 17,355.59

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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.