Home / 39,444.72-59,154.30-13,142.40

Finding the Fourth Proportional to 39,444.72, 59,154.30 and 13,142.40

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Solution

The fourth proportional to 39,444.72, 59,154.30 and 13,142.40 is: 19,709.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,444.72 : 59,154.30 = 13,142.40 : x
  2. Step 2: Convert to fraction form
    39,444.72/59,154.30 = 13,142.40/x
  3. Step 3: Cross multiply
    39,444.72x = 59,154.30 × 13,142.40
  4. Step 4: Simplify right side
    39,444.72x = 777,429,472.32
  5. Step 5: Solve for x
    x = 777,429,472.32/39,444.72
  6. Step 6: Final answer
    x = 19,709.34

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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.