Home / 25,688.29-35,445.72-15,611.35

Finding the Fourth Proportional to 25,688.29, 35,445.72 and 15,611.35

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Solution

The fourth proportional to 25,688.29, 35,445.72 and 15,611.35 is: 21,541.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,688.29 : 35,445.72 = 15,611.35 : x
  2. Step 2: Convert to fraction form
    25,688.29/35,445.72 = 15,611.35/x
  3. Step 3: Cross multiply
    25,688.29x = 35,445.72 × 15,611.35
  4. Step 4: Simplify right side
    25,688.29x = 553,355,540.92
  5. Step 5: Solve for x
    x = 553,355,540.92/25,688.29
  6. Step 6: Final answer
    x = 21,541.16

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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.