Home / 42,154.65-58,105.84-28,538.40

Finding the Fourth Proportional to 42,154.65, 58,105.84 and 28,538.40

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Solution

The fourth proportional to 42,154.65, 58,105.84 and 28,538.40 is: 39,337.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,154.65 : 58,105.84 = 28,538.40 : x
  2. Step 2: Convert to fraction form
    42,154.65/58,105.84 = 28,538.40/x
  3. Step 3: Cross multiply
    42,154.65x = 58,105.84 × 28,538.40
  4. Step 4: Simplify right side
    42,154.65x = 1,658,247,704.26
  5. Step 5: Solve for x
    x = 1,658,247,704.26/42,154.65
  6. Step 6: Final answer
    x = 39,337.24

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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.