Home / 28,689.93-43,047.65-14,642.54

Finding the Fourth Proportional to 28,689.93, 43,047.65 and 14,642.54

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Solution

The fourth proportional to 28,689.93, 43,047.65 and 14,642.54 is: 21,970.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,689.93 : 43,047.65 = 14,642.54 : x
  2. Step 2: Convert to fraction form
    28,689.93/43,047.65 = 14,642.54/x
  3. Step 3: Cross multiply
    28,689.93x = 43,047.65 × 14,642.54
  4. Step 4: Simplify right side
    28,689.93x = 630,326,937.03
  5. Step 5: Solve for x
    x = 630,326,937.03/28,689.93
  6. Step 6: Final answer
    x = 21,970.32

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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.