Home / 25,830.16-35,637.48-15,216.40

Finding the Fourth Proportional to 25,830.16, 35,637.48 and 15,216.40

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Solution

The fourth proportional to 25,830.16, 35,637.48 and 15,216.40 is: 20,993.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,830.16 : 35,637.48 = 15,216.40 : x
  2. Step 2: Convert to fraction form
    25,830.16/35,637.48 = 15,216.40/x
  3. Step 3: Cross multiply
    25,830.16x = 35,637.48 × 15,216.40
  4. Step 4: Simplify right side
    25,830.16x = 542,274,150.67
  5. Step 5: Solve for x
    x = 542,274,150.67/25,830.16
  6. Step 6: Final answer
    x = 20,993.84

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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.