Home / 39,159.91-54,041.65-21,254.88

Finding the Fourth Proportional to 39,159.91, 54,041.65 and 21,254.88

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Solution

The fourth proportional to 39,159.91, 54,041.65 and 21,254.88 is: 29,332.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,159.91 : 54,041.65 = 21,254.88 : x
  2. Step 2: Convert to fraction form
    39,159.91/54,041.65 = 21,254.88/x
  3. Step 3: Cross multiply
    39,159.91x = 54,041.65 × 21,254.88
  4. Step 4: Simplify right side
    39,159.91x = 1,148,648,783.28
  5. Step 5: Solve for x
    x = 1,148,648,783.28/39,159.91
  6. Step 6: Final answer
    x = 29,332.26

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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.