Home / 19,809.81-29,508.32-18,758.00

Finding the Fourth Proportional to 19,809.81, 29,508.32 and 18,758.00

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Solution

The fourth proportional to 19,809.81, 29,508.32 and 18,758.00 is: 27,941.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,809.81 : 29,508.32 = 18,758.00 : x
  2. Step 2: Convert to fraction form
    19,809.81/29,508.32 = 18,758.00/x
  3. Step 3: Cross multiply
    19,809.81x = 29,508.32 × 18,758.00
  4. Step 4: Simplify right side
    19,809.81x = 553,516,825.23
  5. Step 5: Solve for x
    x = 553,516,825.23/19,809.81
  6. Step 6: Final answer
    x = 27,941.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.