Home / 39,155.17-54,036.80-22,159.41

Finding the Fourth Proportional to 39,155.17, 54,036.80 and 22,159.41

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Solution

The fourth proportional to 39,155.17, 54,036.80 and 22,159.41 is: 30,581.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,155.17 : 54,036.80 = 22,159.41 : x
  2. Step 2: Convert to fraction form
    39,155.17/54,036.80 = 22,159.41/x
  3. Step 3: Cross multiply
    39,155.17x = 54,036.80 × 22,159.41
  4. Step 4: Simplify right side
    39,155.17x = 1,197,423,225.31
  5. Step 5: Solve for x
    x = 1,197,423,225.31/39,155.17
  6. Step 6: Final answer
    x = 30,581.48

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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.