Home / 39,283.72-58,887.08-12,970.88

Finding the Fourth Proportional to 39,283.72, 58,887.08 and 12,970.88

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Solution

The fourth proportional to 39,283.72, 58,887.08 and 12,970.88 is: 19,443.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,283.72 : 58,887.08 = 12,970.88 : x
  2. Step 2: Convert to fraction form
    39,283.72/58,887.08 = 12,970.88/x
  3. Step 3: Cross multiply
    39,283.72x = 58,887.08 × 12,970.88
  4. Step 4: Simplify right side
    39,283.72x = 763,817,248.23
  5. Step 5: Solve for x
    x = 763,817,248.23/39,283.72
  6. Step 6: Final answer
    x = 19,443.61

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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.