Home / 28,528.34-39,368.04-15,955.52

Finding the Fourth Proportional to 28,528.34, 39,368.04 and 15,955.52

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Solution

The fourth proportional to 28,528.34, 39,368.04 and 15,955.52 is: 22,018.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,528.34 : 39,368.04 = 15,955.52 : x
  2. Step 2: Convert to fraction form
    28,528.34/39,368.04 = 15,955.52/x
  3. Step 3: Cross multiply
    28,528.34x = 39,368.04 × 15,955.52
  4. Step 4: Simplify right side
    28,528.34x = 628,137,549.58
  5. Step 5: Solve for x
    x = 628,137,549.58/28,528.34
  6. Step 6: Final answer
    x = 22,018.02

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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.