Home / 19,746.40-29,631.34-7,275.20

Finding the Fourth Proportional to 19,746.40, 29,631.34 and 7,275.20

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Solution

The fourth proportional to 19,746.40, 29,631.34 and 7,275.20 is: 10,917.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,746.40 : 29,631.34 = 7,275.20 : x
  2. Step 2: Convert to fraction form
    19,746.40/29,631.34 = 7,275.20/x
  3. Step 3: Cross multiply
    19,746.40x = 29,631.34 × 7,275.20
  4. Step 4: Simplify right side
    19,746.40x = 215,573,924.77
  5. Step 5: Solve for x
    x = 215,573,924.77/19,746.40
  6. Step 6: Final answer
    x = 10,917.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.