Home / 16,420.32-22,642.74-15,088.68

Finding the Fourth Proportional to 16,420.32, 22,642.74 and 15,088.68

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Solution

The fourth proportional to 16,420.32, 22,642.74 and 15,088.68 is: 20,806.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,420.32 : 22,642.74 = 15,088.68 : x
  2. Step 2: Convert to fraction form
    16,420.32/22,642.74 = 15,088.68/x
  3. Step 3: Cross multiply
    16,420.32x = 22,642.74 × 15,088.68
  4. Step 4: Simplify right side
    16,420.32x = 341,649,058.18
  5. Step 5: Solve for x
    x = 341,649,058.18/16,420.32
  6. Step 6: Final answer
    x = 20,806.48

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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.