Home / 28,430.10-42,652.88-8,708.22

Finding the Fourth Proportional to 28,430.10, 42,652.88 and 8,708.22

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Solution

The fourth proportional to 28,430.10, 42,652.88 and 8,708.22 is: 13,064.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,430.10 : 42,652.88 = 8,708.22 : x
  2. Step 2: Convert to fraction form
    28,430.10/42,652.88 = 8,708.22/x
  3. Step 3: Cross multiply
    28,430.10x = 42,652.88 × 8,708.22
  4. Step 4: Simplify right side
    28,430.10x = 371,430,662.67
  5. Step 5: Solve for x
    x = 371,430,662.67/28,430.10
  6. Step 6: Final answer
    x = 13,064.70

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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.