Home / 43,140.34-64,710.56-13,560.76

Finding the Fourth Proportional to 43,140.34, 64,710.56 and 13,560.76

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Solution

The fourth proportional to 43,140.34, 64,710.56 and 13,560.76 is: 20,341.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,140.34 : 64,710.56 = 13,560.76 : x
  2. Step 2: Convert to fraction form
    43,140.34/64,710.56 = 13,560.76/x
  3. Step 3: Cross multiply
    43,140.34x = 64,710.56 × 13,560.76
  4. Step 4: Simplify right side
    43,140.34x = 877,524,373.63
  5. Step 5: Solve for x
    x = 877,524,373.63/43,140.34
  6. Step 6: Final answer
    x = 20,341.16

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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.