Home / 42,711.04-64,056.24-19,005.76

Finding the Fourth Proportional to 42,711.04, 64,056.24 and 19,005.76

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Solution

The fourth proportional to 42,711.04, 64,056.24 and 19,005.76 is: 28,504.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,711.04 : 64,056.24 = 19,005.76 : x
  2. Step 2: Convert to fraction form
    42,711.04/64,056.24 = 19,005.76/x
  3. Step 3: Cross multiply
    42,711.04x = 64,056.24 × 19,005.76
  4. Step 4: Simplify right side
    42,711.04x = 1,217,437,523.94
  5. Step 5: Solve for x
    x = 1,217,437,523.94/42,711.04
  6. Step 6: Final answer
    x = 28,504.05

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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.