Home / 19,931.63-27,507.59-14,887.10

Finding the Fourth Proportional to 19,931.63, 27,507.59 and 14,887.10

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Solution

The fourth proportional to 19,931.63, 27,507.59 and 14,887.10 is: 20,545.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,931.63 : 27,507.59 = 14,887.10 : x
  2. Step 2: Convert to fraction form
    19,931.63/27,507.59 = 14,887.10/x
  3. Step 3: Cross multiply
    19,931.63x = 27,507.59 × 14,887.10
  4. Step 4: Simplify right side
    19,931.63x = 409,508,168.65
  5. Step 5: Solve for x
    x = 409,508,168.65/19,931.63
  6. Step 6: Final answer
    x = 20,545.64

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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.