Home / 28,032.19-42,055.39-9,312.32

Finding the Fourth Proportional to 28,032.19, 42,055.39 and 9,312.32

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Solution

The fourth proportional to 28,032.19, 42,055.39 and 9,312.32 is: 13,970.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,032.19 : 42,055.39 = 9,312.32 : x
  2. Step 2: Convert to fraction form
    28,032.19/42,055.39 = 9,312.32/x
  3. Step 3: Cross multiply
    28,032.19x = 42,055.39 × 9,312.32
  4. Step 4: Simplify right side
    28,032.19x = 391,633,226.12
  5. Step 5: Solve for x
    x = 391,633,226.12/28,032.19
  6. Step 6: Final answer
    x = 13,970.84

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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.