Home / 18,432.36-25,430.28-11,260.32

Finding the Fourth Proportional to 18,432.36, 25,430.28 and 11,260.32

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Solution

The fourth proportional to 18,432.36, 25,430.28 and 11,260.32 is: 15,535.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,432.36 : 25,430.28 = 11,260.32 : x
  2. Step 2: Convert to fraction form
    18,432.36/25,430.28 = 11,260.32/x
  3. Step 3: Cross multiply
    18,432.36x = 25,430.28 × 11,260.32
  4. Step 4: Simplify right side
    18,432.36x = 286,353,090.49
  5. Step 5: Solve for x
    x = 286,353,090.49/18,432.36
  6. Step 6: Final answer
    x = 15,535.35

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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.