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Finding the Fourth Proportional to 43,988.76, 65,980.98 and 14,420.52

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Solution

The fourth proportional to 43,988.76, 65,980.98 and 14,420.52 is: 21,630.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,988.76 : 65,980.98 = 14,420.52 : x
  2. Step 2: Convert to fraction form
    43,988.76/65,980.98 = 14,420.52/x
  3. Step 3: Cross multiply
    43,988.76x = 65,980.98 × 14,420.52
  4. Step 4: Simplify right side
    43,988.76x = 951,480,041.71
  5. Step 5: Solve for x
    x = 951,480,041.71/43,988.76
  6. Step 6: Final answer
    x = 21,630.07

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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.