Home / 25,389.84-35,032.32-15,319.92

Finding the Fourth Proportional to 25,389.84, 35,032.32 and 15,319.92

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Solution

The fourth proportional to 25,389.84, 35,032.32 and 15,319.92 is: 21,138.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,389.84 : 35,032.32 = 15,319.92 : x
  2. Step 2: Convert to fraction form
    25,389.84/35,032.32 = 15,319.92/x
  3. Step 3: Cross multiply
    25,389.84x = 35,032.32 × 15,319.92
  4. Step 4: Simplify right side
    25,389.84x = 536,692,339.81
  5. Step 5: Solve for x
    x = 536,692,339.81/25,389.84
  6. Step 6: Final answer
    x = 21,138.07

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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.