Home / 35,328.04-48,731.10-20,978.14

Finding the Fourth Proportional to 35,328.04, 48,731.10 and 20,978.14

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Solution

The fourth proportional to 35,328.04, 48,731.10 and 20,978.14 is: 28,937.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,328.04 : 48,731.10 = 20,978.14 : x
  2. Step 2: Convert to fraction form
    35,328.04/48,731.10 = 20,978.14/x
  3. Step 3: Cross multiply
    35,328.04x = 48,731.10 × 20,978.14
  4. Step 4: Simplify right side
    35,328.04x = 1,022,287,838.15
  5. Step 5: Solve for x
    x = 1,022,287,838.15/35,328.04
  6. Step 6: Final answer
    x = 28,937.01

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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.