Home / 43,315.04-64,980.75-13,740.32

Finding the Fourth Proportional to 43,315.04, 64,980.75 and 13,740.32

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Solution

The fourth proportional to 43,315.04, 64,980.75 and 13,740.32 is: 20,613.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,315.04 : 64,980.75 = 13,740.32 : x
  2. Step 2: Convert to fraction form
    43,315.04/64,980.75 = 13,740.32/x
  3. Step 3: Cross multiply
    43,315.04x = 64,980.75 × 13,740.32
  4. Step 4: Simplify right side
    43,315.04x = 892,856,298.84
  5. Step 5: Solve for x
    x = 892,856,298.84/43,315.04
  6. Step 6: Final answer
    x = 20,613.08

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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.