Home / 19,924.95-27,489.87-12,856.08

Finding the Fourth Proportional to 19,924.95, 27,489.87 and 12,856.08

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Solution

The fourth proportional to 19,924.95, 27,489.87 and 12,856.08 is: 17,737.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,924.95 : 27,489.87 = 12,856.08 : x
  2. Step 2: Convert to fraction form
    19,924.95/27,489.87 = 12,856.08/x
  3. Step 3: Cross multiply
    19,924.95x = 27,489.87 × 12,856.08
  4. Step 4: Simplify right side
    19,924.95x = 353,411,967.91
  5. Step 5: Solve for x
    x = 353,411,967.91/19,924.95
  6. Step 6: Final answer
    x = 17,737.16

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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.