Home / 25,869.60-38,746.80-19,994.40

Finding the Fourth Proportional to 25,869.60, 38,746.80 and 19,994.40

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Solution

The fourth proportional to 25,869.60, 38,746.80 and 19,994.40 is: 29,947.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,869.60 : 38,746.80 = 19,994.40 : x
  2. Step 2: Convert to fraction form
    25,869.60/38,746.80 = 19,994.40/x
  3. Step 3: Cross multiply
    25,869.60x = 38,746.80 × 19,994.40
  4. Step 4: Simplify right side
    25,869.60x = 774,719,017.92
  5. Step 5: Solve for x
    x = 774,719,017.92/25,869.60
  6. Step 6: Final answer
    x = 29,947.08

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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.