Home / 31,341.40-47,291.29-30,126.28

Finding the Fourth Proportional to 31,341.40, 47,291.29 and 30,126.28

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Solution

The fourth proportional to 31,341.40, 47,291.29 and 30,126.28 is: 45,457.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,341.40 : 47,291.29 = 30,126.28 : x
  2. Step 2: Convert to fraction form
    31,341.40/47,291.29 = 30,126.28/x
  3. Step 3: Cross multiply
    31,341.40x = 47,291.29 × 30,126.28
  4. Step 4: Simplify right side
    31,341.40x = 1,424,710,644.10
  5. Step 5: Solve for x
    x = 1,424,710,644.10/31,341.40
  6. Step 6: Final answer
    x = 45,457.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.