Home / 35,798.28-53,666.64-12,421.68

Finding the Fourth Proportional to 35,798.28, 53,666.64 and 12,421.68

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Solution

The fourth proportional to 35,798.28, 53,666.64 and 12,421.68 is: 18,621.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,798.28 : 53,666.64 = 12,421.68 : x
  2. Step 2: Convert to fraction form
    35,798.28/53,666.64 = 12,421.68/x
  3. Step 3: Cross multiply
    35,798.28x = 53,666.64 × 12,421.68
  4. Step 4: Simplify right side
    35,798.28x = 666,629,828.76
  5. Step 5: Solve for x
    x = 666,629,828.76/35,798.28
  6. Step 6: Final answer
    x = 18,621.84

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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.