Home / 30,154.74-44,987.28-28,521.78

Finding the Fourth Proportional to 30,154.74, 44,987.28 and 28,521.78

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Solution

The fourth proportional to 30,154.74, 44,987.28 and 28,521.78 is: 42,551.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,154.74 : 44,987.28 = 28,521.78 : x
  2. Step 2: Convert to fraction form
    30,154.74/44,987.28 = 28,521.78/x
  3. Step 3: Cross multiply
    30,154.74x = 44,987.28 × 28,521.78
  4. Step 4: Simplify right side
    30,154.74x = 1,283,117,302.96
  5. Step 5: Solve for x
    x = 1,283,117,302.96/30,154.74
  6. Step 6: Final answer
    x = 42,551.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.