Home / 19,955.80-29,931.27-10,090

Finding the Fourth Proportional to 19,955.80, 29,931.27 and 10,090

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Solution

The fourth proportional to 19,955.80, 29,931.27 and 10,090 is: 15,133.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,955.80 : 29,931.27 = 10,090 : x
  2. Step 2: Convert to fraction form
    19,955.80/29,931.27 = 10,090/x
  3. Step 3: Cross multiply
    19,955.80x = 29,931.27 × 10,090
  4. Step 4: Simplify right side
    19,955.80x = 302,006,514.30
  5. Step 5: Solve for x
    x = 302,006,514.30/19,955.80
  6. Step 6: Final answer
    x = 15,133.77

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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.