Home / 28,416.08-42,619.52-13,423.16

Finding the Fourth Proportional to 28,416.08, 42,619.52 and 13,423.16

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Solution

The fourth proportional to 28,416.08, 42,619.52 and 13,423.16 is: 20,132.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,416.08 : 42,619.52 = 13,423.16 : x
  2. Step 2: Convert to fraction form
    28,416.08/42,619.52 = 13,423.16/x
  3. Step 3: Cross multiply
    28,416.08x = 42,619.52 × 13,423.16
  4. Step 4: Simplify right side
    28,416.08x = 572,088,636.08
  5. Step 5: Solve for x
    x = 572,088,636.08/28,416.08
  6. Step 6: Final answer
    x = 20,132.57

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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.