Home / 28,848.52-39,828.95-22,121.20

Finding the Fourth Proportional to 28,848.52, 39,828.95 and 22,121.20

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Solution

The fourth proportional to 28,848.52, 39,828.95 and 22,121.20 is: 30,541.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,848.52 : 39,828.95 = 22,121.20 : x
  2. Step 2: Convert to fraction form
    28,848.52/39,828.95 = 22,121.20/x
  3. Step 3: Cross multiply
    28,848.52x = 39,828.95 × 22,121.20
  4. Step 4: Simplify right side
    28,848.52x = 881,064,168.74
  5. Step 5: Solve for x
    x = 881,064,168.74/28,848.52
  6. Step 6: Final answer
    x = 30,541.05

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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.