Home / 40,053.79-60,068.38-18,987.61

Finding the Fourth Proportional to 40,053.79, 60,068.38 and 18,987.61

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Solution

The fourth proportional to 40,053.79, 60,068.38 and 18,987.61 is: 28,475.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,053.79 : 60,068.38 = 18,987.61 : x
  2. Step 2: Convert to fraction form
    40,053.79/60,068.38 = 18,987.61/x
  3. Step 3: Cross multiply
    40,053.79x = 60,068.38 × 18,987.61
  4. Step 4: Simplify right side
    40,053.79x = 1,140,554,972.77
  5. Step 5: Solve for x
    x = 1,140,554,972.77/40,053.79
  6. Step 6: Final answer
    x = 28,475.58

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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.