Home / 27,320.34-37,646.64-20,947.08

Finding the Fourth Proportional to 27,320.34, 37,646.64 and 20,947.08

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Solution

The fourth proportional to 27,320.34, 37,646.64 and 20,947.08 is: 28,864.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,320.34 : 37,646.64 = 20,947.08 : x
  2. Step 2: Convert to fraction form
    27,320.34/37,646.64 = 20,947.08/x
  3. Step 3: Cross multiply
    27,320.34x = 37,646.64 × 20,947.08
  4. Step 4: Simplify right side
    27,320.34x = 788,587,179.81
  5. Step 5: Solve for x
    x = 788,587,179.81/27,320.34
  6. Step 6: Final answer
    x = 28,864.47

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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.