Home / 19,722.64-29,443.40-19,030.55

Finding the Fourth Proportional to 19,722.64, 29,443.40 and 19,030.55

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Solution

The fourth proportional to 19,722.64, 29,443.40 and 19,030.55 is: 28,410.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,722.64 : 29,443.40 = 19,030.55 : x
  2. Step 2: Convert to fraction form
    19,722.64/29,443.40 = 19,030.55/x
  3. Step 3: Cross multiply
    19,722.64x = 29,443.40 × 19,030.55
  4. Step 4: Simplify right side
    19,722.64x = 560,323,924.86
  5. Step 5: Solve for x
    x = 560,323,924.86/19,722.64
  6. Step 6: Final answer
    x = 28,410.19

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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.