Home / 29,368.31-40,528.55-15,939.67

Finding the Fourth Proportional to 29,368.31, 40,528.55 and 15,939.67

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Solution

The fourth proportional to 29,368.31, 40,528.55 and 15,939.67 is: 21,996.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,368.31 : 40,528.55 = 15,939.67 : x
  2. Step 2: Convert to fraction form
    29,368.31/40,528.55 = 15,939.67/x
  3. Step 3: Cross multiply
    29,368.31x = 40,528.55 × 15,939.67
  4. Step 4: Simplify right side
    29,368.31x = 646,011,727.10
  5. Step 5: Solve for x
    x = 646,011,727.10/29,368.31
  6. Step 6: Final answer
    x = 21,996.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.