Home / 30,500.48-42,088.32-17,070.72

Finding the Fourth Proportional to 30,500.48, 42,088.32 and 17,070.72

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Solution

The fourth proportional to 30,500.48, 42,088.32 and 17,070.72 is: 23,556.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,500.48 : 42,088.32 = 17,070.72 : x
  2. Step 2: Convert to fraction form
    30,500.48/42,088.32 = 17,070.72/x
  3. Step 3: Cross multiply
    30,500.48x = 42,088.32 × 17,070.72
  4. Step 4: Simplify right side
    30,500.48x = 718,477,925.99
  5. Step 5: Solve for x
    x = 718,477,925.99/30,500.48
  6. Step 6: Final answer
    x = 23,556.28

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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.