Home / 21,925.74-30,257.85-12,973.02

Finding the Fourth Proportional to 21,925.74, 30,257.85 and 12,973.02

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Solution

The fourth proportional to 21,925.74, 30,257.85 and 12,973.02 is: 17,902.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,925.74 : 30,257.85 = 12,973.02 : x
  2. Step 2: Convert to fraction form
    21,925.74/30,257.85 = 12,973.02/x
  3. Step 3: Cross multiply
    21,925.74x = 30,257.85 × 12,973.02
  4. Step 4: Simplify right side
    21,925.74x = 392,535,693.21
  5. Step 5: Solve for x
    x = 392,535,693.21/21,925.74
  6. Step 6: Final answer
    x = 17,902.96

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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.