Home / 35,349.90-52,970.10-20,565.78

Finding the Fourth Proportional to 35,349.90, 52,970.10 and 20,565.78

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Solution

The fourth proportional to 35,349.90, 52,970.10 and 20,565.78 is: 30,816.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,349.90 : 52,970.10 = 20,565.78 : x
  2. Step 2: Convert to fraction form
    35,349.90/52,970.10 = 20,565.78/x
  3. Step 3: Cross multiply
    35,349.90x = 52,970.10 × 20,565.78
  4. Step 4: Simplify right side
    35,349.90x = 1,089,371,423.18
  5. Step 5: Solve for x
    x = 1,089,371,423.18/35,349.90
  6. Step 6: Final answer
    x = 30,816.82

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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.