Home / 21,458.93-29,612.59-12,507.01

Finding the Fourth Proportional to 21,458.93, 29,612.59 and 12,507.01

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Solution

The fourth proportional to 21,458.93, 29,612.59 and 12,507.01 is: 17,259.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,458.93 : 29,612.59 = 12,507.01 : x
  2. Step 2: Convert to fraction form
    21,458.93/29,612.59 = 12,507.01/x
  3. Step 3: Cross multiply
    21,458.93x = 29,612.59 × 12,507.01
  4. Step 4: Simplify right side
    21,458.93x = 370,364,853.96
  5. Step 5: Solve for x
    x = 370,364,853.96/21,458.93
  6. Step 6: Final answer
    x = 17,259.25

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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.