Home / 28,458.90-42,652.46-14,422.45

Finding the Fourth Proportional to 28,458.90, 42,652.46 and 14,422.45

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Solution

The fourth proportional to 28,458.90, 42,652.46 and 14,422.45 is: 21,615.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,458.90 : 42,652.46 = 14,422.45 : x
  2. Step 2: Convert to fraction form
    28,458.90/42,652.46 = 14,422.45/x
  3. Step 3: Cross multiply
    28,458.90x = 42,652.46 × 14,422.45
  4. Step 4: Simplify right side
    28,458.90x = 615,152,899.61
  5. Step 5: Solve for x
    x = 615,152,899.61/28,458.90
  6. Step 6: Final answer
    x = 21,615.49

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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.