Home / 39,111.10-58,666.65-12,816.70

Finding the Fourth Proportional to 39,111.10, 58,666.65 and 12,816.70

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Solution

The fourth proportional to 39,111.10, 58,666.65 and 12,816.70 is: 19,225.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,111.10 : 58,666.65 = 12,816.70 : x
  2. Step 2: Convert to fraction form
    39,111.10/58,666.65 = 12,816.70/x
  3. Step 3: Cross multiply
    39,111.10x = 58,666.65 × 12,816.70
  4. Step 4: Simplify right side
    39,111.10x = 751,912,853.06
  5. Step 5: Solve for x
    x = 751,912,853.06/39,111.10
  6. Step 6: Final answer
    x = 19,225.05

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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.