Home / 30,822.50-42,622.53-29,430.11

Finding the Fourth Proportional to 30,822.50, 42,622.53 and 29,430.11

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Solution

The fourth proportional to 30,822.50, 42,622.53 and 29,430.11 is: 40,697.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,822.50 : 42,622.53 = 29,430.11 : x
  2. Step 2: Convert to fraction form
    30,822.50/42,622.53 = 29,430.11/x
  3. Step 3: Cross multiply
    30,822.50x = 42,622.53 × 29,430.11
  4. Step 4: Simplify right side
    30,822.50x = 1,254,385,746.38
  5. Step 5: Solve for x
    x = 1,254,385,746.38/30,822.50
  6. Step 6: Final answer
    x = 40,697.08

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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.