Home / 19,328.32-28,980.84-10,551.04

Finding the Fourth Proportional to 19,328.32, 28,980.84 and 10,551.04

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Solution

The fourth proportional to 19,328.32, 28,980.84 and 10,551.04 is: 15,820.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,328.32 : 28,980.84 = 10,551.04 : x
  2. Step 2: Convert to fraction form
    19,328.32/28,980.84 = 10,551.04/x
  3. Step 3: Cross multiply
    19,328.32x = 28,980.84 × 10,551.04
  4. Step 4: Simplify right side
    19,328.32x = 305,778,002.07
  5. Step 5: Solve for x
    x = 305,778,002.07/19,328.32
  6. Step 6: Final answer
    x = 15,820.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.