Home / 39,087.57-58,642.29-12,810.76

Finding the Fourth Proportional to 39,087.57, 58,642.29 and 12,810.76

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Solution

The fourth proportional to 39,087.57, 58,642.29 and 12,810.76 is: 19,219.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,087.57 : 58,642.29 = 12,810.76 : x
  2. Step 2: Convert to fraction form
    39,087.57/58,642.29 = 12,810.76/x
  3. Step 3: Cross multiply
    39,087.57x = 58,642.29 × 12,810.76
  4. Step 4: Simplify right side
    39,087.57x = 751,252,303.04
  5. Step 5: Solve for x
    x = 751,252,303.04/39,087.57
  6. Step 6: Final answer
    x = 19,219.72

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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.